Similar sites like playpiano.com

Home - PlayPiano

Are you tired of investing in piano lessons with no new skills to show for it? Do you want to stop wasting time and money on programs that just don’t work? In the last 50 years, PlayPiano has helped thousands … Continue reading →

Categories: Online Shopping, Education
Topics: beginner piano lessons, chopsticks piano, duane shinn, how to play piano, learn piano, music notes, my country tis of thee, my country tis of thee lyrics, piano chords, piano keys, piano lesson dvd, piano lessons for adults, piano lessons online, piano notes, piano terms

Facebook ♡: 0

playpiano.com Reviews

Sites similar to playpiano.com - Top 72 playpiano.com alternatives

hearandplay.com
Piano Lessons - Play Piano By Ear
Piano lessons teaching piano by ear. Piano lessons for adults, ear-training, music theory.

Semrush Rank: 171,799
Categories: Online Shopping, ???

Similar?
Yes 0 No 0

pianoplayerworld.com

Categories: Marketing/Merchandising, Business

Similar?
Yes 0 No 0

musictheoryfundamentals.com
Music Theory Tutorials | Learn and Practice Music Theory, Rhythm, & Ear Training
Music Theory Tutorials | Learn and Practice Music Theory, Rhythm, & Ear Training

Semrush Rank: 65,203
Categories: Marketing/Merchandising, Arts and Culture

Similar?
Yes 0 No 0

freejazzlessons.com
Free Jazz Piano Lessons Online - FreeJazzLessons.com
The World's #1 Jazz Piano Lessons Website. Join over 60000 delighted students who have learned how to play jazz piano. Discover the ultimate jazz piano lessons experience.

Semrush Rank: 844,366 Facebook ♡: 0
Categories: Blogs/Wiki, Entertainment

Similar?
Yes 0 No 0

zebrakeys.com
Free Online Piano Lessons - Learn How to Play Piano
Learn how to play piano with over 50 free online piano lessons. Beginner piano lessons, intermediate piano lessons and advanced piano lessons.

Moz DA: 47 Moz Rank: 4.4 Semrush Rank: 826,101 Facebook ♡: 184
Categories: Entertainment, Education

Similar?
Yes 0 No 0

evangelisticpiano.com

Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

true-piano-lessons.com
True Piano Lessons
Learn how to play the piano by building a strong foundation of real skills. Enjoy free piano lessons, free video tutorials… you will play the piano!

Facebook ♡: 180
Categories: Education/Reference, Entertainment

Similar?
Yes 0 No 0

pianogroove.com
Learn Jazz Piano Online with PianoGroove.com
Learn jazz piano with our streams high-definition lessons on any device: mobile, tablet, or laptop. Learning to play jazz piano online has never been this easy!

Semrush Rank: 511,435 Facebook ♡: 11
Categories: Blogs/Wiki, Education

Similar?
Yes 0 No 0

homeschoolpiano.com
HomeSchoolPiano - Piano Lessons For Home School Families -
HomeSchoolPiano - Piano Lessons For Home School Families -

Moz DA: 27 Moz Rank: 3.6 Semrush Rank: 1,292,995
Categories: Marketing/Merchandising, Streaming Media and Download

Similar?
Yes 0 No 0

pianowithwillie.com
Learn Piano Online With Willie Myette - PianoWithWillie
Your Piano Playing To The Next Level... News: All PianoWithWillie lessons have now been transferred to our new site: Jazzedge.com Jazzedge is now the most complete piano program online with hundreds of hours of lessons for beginner- to advanced-level players in a variety of musical styles. Check out Jazzedge today! https://jazzedge.com Online Piano Lessons Work! Once you

Categories: Sports, Entertainment

Similar?
Yes 0 No 0

key-notes.com
Key-Notes: Learn Piano Online
Learn piano online with Key-Notes, a leading method specializing in teaching adult beginning to intermediate-level piano students.

Semrush Rank: 51,121
Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

greghowlett.com
Greg Howlett - Christian Piano Music
Greg Howlett - Christian Piano Music

Semrush Rank: 530,881 Facebook ♡: 441
Categories: Society/Religion and Spirituality, Shopping/Health, Marketing/Merchandising, Shopping

Similar?
Yes 0 No 0

piano-play-it.com
Free Piano Lessons for Free Spirits!
Free piano lessons for those who want to learn to play piano in a practical and playful way.

Moz DA: 41 Moz Rank: 4.6 Semrush Rank: 204,631 Facebook ♡: 869
Categories: Education/Reference, Education

Similar?
Yes 0 No 0

method-behind-the-music.com
All about music - The Method Behind the Music
The Method Behind the Music is a resource for information on music theory, conducting, the physics of sound, and the history of music.

Facebook ♡: 19
Categories: Education/Reference, Education

Similar?
Yes 0 No 0

theartofpianoperformance.me
The Art of Piano Performance - Music can reach that which language can't, it can perforate the armor that a wounded self builds very early to protect itself…the process is very mysterious and beyond language…
Music can reach that which language can't, it can perforate the armor that a wounded self builds very early to protect itself...the process is very mysterious and beyond language...

Moz DA: 10 Moz Rank: 2.6 Semrush Rank: 27,771,348 Facebook ♡: 0
Categories: Blogs/Wiki, Entertainment

Similar?
Yes 0 No 0

secretsofsongwriting.com
The Essential Secrets of Songwriting | Daily Articles by Gary Ewer
Daily Articles by Gary Ewer

Semrush Rank: 300,478
Categories: Blogs/Wiki, Entertainment

Similar?
Yes 0 No 0

howmusicreallyworks.com
How Music REALLY Works! The Essential Handbook for Songwriters, Performers, and Music Students
How Music REALLY Works! The Essential Handbook for Songwriters, Performers, and Music Students

Moz DA: 39 Moz Rank: 4.2 Semrush Rank: 367,217
Categories: Business, Entertainment

Similar?
Yes 0 No 0

easypianotips.com
Piano Tips and Free Piano Lessons Online
how to play piano online, get free piano lessons on the keyboard, notes, chords, scales, and piano tips.

Semrush Rank: 3,317,744
Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

elitemusic.ca
Elite Music Academy | In Studio, Online, and at Home Music lessons
Elite Music Academy is now offering in-person and online music lessons along with March/Summer Camp Programs – Come rock out with us!

Semrush Rank: 391,468
Categories: Education/Reference, Education

Similar?
Yes 0 No 0

pianote.com
Learn the piano anytime with real teachers. | Pianote
Learn the piano anytime with step-by-step video lessons, world-class teachers, and unlimited personal support. 90-Day Guarantee.

Semrush Rank: 36,901
Categories: Entertainment, Education

Similar?
Yes 0 No 0

studybass.com
StudyBass - Free interactive online bass lessons
Learn how to play bass guitar. Free bass lessons and resources for bass players...

Moz DA: 47 Moz Rank: 4.6 Semrush Rank: 53,608 Facebook ♡: 2,395
Categories: Recreation/Hobbies, Entertainment

Similar?
Yes 0 No 0

piano-lessons-info.com
Piano lessons information. Learn how to play the piano!
The best ways for you to learn the piano, teach piano, and understand some piano lessons basics.

Moz DA: 45 Moz Rank: 4.1 Semrush Rank: 168,249 Facebook ♡: 53
Categories: Education/Reference, Education

Similar?
Yes 0 No 0

onlinepianocoach.com
Piano Lessons, Tips, Tools & Resources for Adult Beginners
Get started with piano lessons tips and techniques today, and get the tools you need for learning to play the piano especially for adult beginners.

Semrush Rank: 157,890
Categories: Sports, Entertainment

Similar?
Yes 0 No 0

ourworshipsound.com
ourworshipsound.com
One moment, please...

Semrush Rank: 2,741,014 Facebook ♡: 15
Categories: Entertainment, Personal Websites and Blogs

Similar?
Yes 0 No 0

pianolessons.com
Piano Lessons Online » Learn How To Play Piano!
Powerful piano lessons to help you learn how to play piano. You can start learning to play piano for free today!

Moz DA: 38 Moz Rank: 4 Semrush Rank: 72,294 Facebook ♡: 1,800
Categories: Regional/North America, Arts/Music, Reference/Education, Education/Reference, Education

Similar?
Yes 0 No 0

pianoin21days.com
Piano In 21 Days - Online Piano Course to Learn Piano Fast
Have you taken piano lessons but didn't see results you wanted? Learn piano fast and play the songs you want (without boring theory or drills) in just 21 days.

Semrush Rank: 96,227 Facebook ♡: 1,367
Categories: Business/Business Services, Home/Cooking, Computers/Internet/On the Web, Marketing/Merchandising, Streaming Media and Download

Similar?
Yes 0 No 0

pianochord.org
Piano chord guide with pictures and theory
Learn piano chords - complete overview with pictures of all kinds of piano chords: major, minor, dominant and other categories including notes and fingerings.

Moz DA: 32 Moz Rank: 4.4 Semrush Rank: 16,025 Facebook ♡: 171
Categories: Business/Arts and Entertainment, Shopping/Music, Reference/Education, Entertainment, Entertainment

Similar?
Yes 0 No 0

essential-music-theory.com
The Essentials of Music Theory
Essential Music Theory teaches you everything from the basics of how to read music, to more advanced concepts such as scales, chords and harmony. It includes worksheets and online quizzes.

Semrush Rank: 88,502
Categories: Entertainment, Education

Similar?
Yes 0 No 0

aboutmusictheory.com
Music Theory & Classical Jazz Harmony
%description%

Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

activatemusic.academy
Guitar Nutrition
Home - Activate Music Academy

Semrush Rank: 929,261
Categories: Education/Reference, Entertainment

Similar?
Yes 0 No 0

easypianostyles.com
Easy Piano Styles
Learn how to play the piano by reading chords and then improvising with these chords. You can learn how to play the blues, popular music, jazz and show tunes without reading music!

Semrush Rank: 8,060,656
Categories: Education/Reference, Entertainment

Similar?
Yes 0 No 0

pianoinaflash.com
Online piano lessons | Learn to play piano as an adult!
Change your life with music. Discover how our adult piano lessons will have you playing real songs in just days

Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

pianoscales.org
Piano scales - learn how to play scales on piano
Learn piano scales with help of pictures and explanations. This is your guide to major, minor and lots of other scales on the piano.

Moz DA: 40 Moz Rank: 4.2 Semrush Rank: 35,909 Facebook ♡: 0
Categories: Recreation/Hobbies, Arts and Culture

Similar?
Yes 0 No 0

choose-piano-lessons.com
Piano Lessons, Learn to Play Piano Online for Free
Learn to play the piano at your own pace. These unique piano lessons are designed for musicians at the beginner, intermediate and even the advance level. And learning piano is fun here!

Moz DA: 30 Moz Rank: 3.9 Semrush Rank: 239,797 Facebook ♡: 520
Categories: Marketing/Merchandising, Education

Similar?
Yes 0 No 0

piano-keyboard-guide.com
Free Piano Lessons - Learn How To Play Piano And Keyboard
Piano Keyboard Guide.com contains lots of free piano lessons for beginners, intermediate and advanced players. Learn to play piano and keyboard here.

Moz DA: 49 Moz Rank: 5 Semrush Rank: 12,121 Facebook ♡: 796
Categories: Education/Reference, Arts and Culture

Similar?
Yes 0 No 0

themusicalear.com
Home - The Musical Ear
Ear training for musicians, taught by Julian Bradley

Facebook ♡: 5
Categories: Entertainment, Arts and Culture

Similar?
Yes 0 No 0

upwardworship.com
Upward Worship - Home
Welcome to Upward Worship! Since we all worship something, let me say that the object of worship here is the one and only true God, who exists as three Persons: Father, Son (Jesus Christ), and Holy Spirit. Enjoy!

Semrush Rank: 5,567,571
Categories: Blogs/Wiki, Global Religion

Similar?
Yes 0 No 0

egalo.com
egalo.com
An occasional blog by James Greenwood (@jmsgwd)

Semrush Rank: 1,475,054
Categories: Blogs/Wiki, Information Technology

Similar?
Yes 0 No 0

musictheoryacademy.com
Music Theory Academy - Free Music Theory Lessons
Learn Music theory with these free online courses - lessons for both beginners and advanced students covering a wide range of musical theory.

Semrush Rank: 40,946
Categories: Blogs/Wiki, Education

Similar?
Yes 0 No 0

solopiano.com
Welcome to SoloPiano - Solo Piano
Find your favorite solo piano artists and listen to your favorite solo piano music.

Facebook ♡: 1,855
Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

flowkey.com
Learn How to Play Piano Online - Piano Learning App | flowkey
Learn all there is to know about notes, chords, and the proper technique ✓ 1500+ songs from beginner to pro level ✓ Get started today and play your first song.

Semrush Rank: 19,832 Facebook ♡: 2,566
Categories: Education/Reference, Arts and Culture

Similar?
Yes 0 No 0

fretboardanatomy.com
- Fretboard Anatomy
Hi, I’m Josh. I play guitar for a living. Blah blah blah. Enough about me, let’s talk about you. More specifically, let’s talk about how I can help YOU. You enjoy playing guitar. You took some lessons, you bought some books & DVDs, you watched some YouTube videos, and you learned a whole lot […]

Semrush Rank: 468,345
Categories: Blogs/Wiki, Personal Websites and Blogs

Similar?
Yes 0 No 0

learncolorpiano.com
Home - Learn How to Play Piano Visually with Color Score
Learn how to sound like a professional at the piano without years of lessons…visually! You're not alone if you took piano lessons and soon quit.

Semrush Rank: 1,142,368 Facebook ♡: 109
Categories: Entertainment, Web Hosting

Similar?
Yes 0 No 0

simplifyingtheory.com
Music Theory Lessons - Simplifying Theory
Learn all about music theory, in a way that is simple and easy to understand. We shall close the gaps in your knowledge, whatever they may be.

Semrush Rank: 60,758
Categories: Entertainment, Arts and Culture

Similar?
Yes 0 No 0

thejazzpianosite.com
Free Jazz Piano Lessons: Jazz Theory and Practice - The Jazz Piano Site
FREE Jazz Piano Lessons. No memberships or subscriptions. Every Jazz Piano Tutorial is completely free. Lessons cover both Jazz theory and practice.

Semrush Rank: 121,104
Categories: Entertainment, Arts and Culture

Similar?
Yes 0 No 0

bestpianoclass.com
Piano University: Login Here - Piano University
Login with your username and password. You'll be automatically redirected to whatever course you've purchased. If not, after you're logged in, click your course below to get started. Or, use the menus on the top and the left side of the screen. Note: If you copy and paste in your login details, MAKE SURE you don't accidentally copy … Continue reading Piano University: Login Here →

Moz DA: 19 Moz Rank: 3.3 Semrush Rank: 842,625 Facebook ♡: 602
Categories: News/Media Industry, Society/Government, News/Newspapers, Education/Reference, Education

Similar?
Yes 0 No 0

jazzpianoschool.com
Home Page - Jazz Piano School
We provide a new way to learn jazz. A structured, organized, and clear approach that anybody can use to achieve their jazz piano dream.

Moz DA: 27 Moz Rank: 3.5 Semrush Rank: 1,296,354 Facebook ♡: 167
Categories: Reference/Education, Arts/Music, Arts, Marketing/Merchandising, Business

Similar?
Yes 0 No 0

musictheorysite.com
Treble, Bass, Alto, and Tenor Clefs in Music Reading and Notation | Music Theory Site
In this tutorial I'll show you how to read and recognize the different types of clefs and how they theoretically move the staff up or down the pitch ladder.

Moz DA: 21 Moz Rank: 4.1 Semrush Rank: 640,241 Facebook ♡: 25
Categories: Blogs/Wiki, Entertainment

Similar?
Yes 0 No 0

musichowtoread.weebly.com
FREE COURSE FOR ADULTS OR CHILDREN
Learn to read sheet music for free, plus free learn to play recorder course

Semrush Rank: 543
Categories: Personal Pages, Web Hosting

Similar?
Yes 0 No 0

pianobychords.com
Learn Piano by Chords How To Play Piano
Learn piano with this quick simple chord based method, how to play piano, totally free!

Categories: Recreation/Hobbies, Entertainment

Similar?
Yes 0 No 0

practical-chords-and-harmony.com
Chords and Harmony, a Players Guide
Confused about what chords to use when playing your favorite songs? Let the chords and harmony flow naturally following some basic, logical patterns.

Semrush Rank: 2,332,178
Categories: Entertainment, Streaming Media and Download

Similar?
Yes 0 No 0

musictheoryteacher.com
musictheoryteacher.com - music theory teacher
music theory help, music theory chords, free music theory help

Facebook ♡: 3
Categories: Entertainment, Search Engines and Portals

Similar?
Yes 0 No 0

livingpianos.com
Piano Store - New and Used Pianos for Sale - Living Pianos
Living Pianos is a piano store that offers new and used pianos for sale to the general public. We have a large selection of Steinway, Yamaha

Semrush Rank: 142,472 Facebook ♡: 2,487
Categories: Shopping/Music, Business, Business/Transportation and Logistics, Marketing/Merchandising, Entertainment

Similar?
Yes 0 No 0

bestdigitalpianoguides.com
Best Digital Piano Reviews 2023 - Useful Tips and Guides
Want to find the best digital piano and gain all knowledge about pianos? Check out our reviews of digital and electric piano with useful tips and simple guides.

Categories: Marketing/Merchandising, Arts and Culture

Similar?
Yes 0 No 0

darkworld.com
Home | Dark World
Home | Dark World

Moz DA: 20 Moz Rank: 3.6 Semrush Rank: 315,807
Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

guitarator.com
Guitarator - Guitar and music theory tools, lessons, webapps, articles.
Guitarator - Guitar and music theory tools, lessons, webapps, articles.

Categories: Blogs/Wiki, Entertainment

Similar?
Yes 0 No 0

jamesmstevens.com
James Michael Stevens
This site features the music of James Michael Stevens, a composer and arranger of numerous published compositions and Dean of the School of Music at Welch College in Nashville, TN.

Semrush Rank: 35,682,836
Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

grossepointemusicacademy.com
Home - Grosse Pointe Music Academy
Private Music Lessons We teach beginning through advanced students to play and sing in many different styles of music. Rock, blues, jazz, country, and classical are just some of what we do at Grosse Pointe Music Academy. Private music lessons focus on building solid fundamentals as well as allow for creative expressions of music.

Semrush Rank: 1,567,857 Facebook ♡: 848
Categories: Entertainment, Education

Similar?
Yes 0 No 0

pianochorddictionary.com
Piano Chord Dictionary Online Piano Chords
Piano Chords including major, minor, diminished, augmented, 6, 7, 9, major 7, major 9, sus4 chords at piano chord dictionary.com

Facebook ♡: 0
Categories: Technical Information, Entertainment

Similar?
Yes 0 No 0

bluesjazzpiano.com
Blues and Jazz Piano Articles and Tips
Discover the world of Blues and Jazz piano with our expertly crafted articles. From iconic performers to improvisation techniques, we've got you covered.

Semrush Rank: 4,590,828
Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

artofcomposing.com
Art of Composing - Let's learn to compose together.
Let's learn to compose together.

Moz DA: 44 Moz Rank: 4.1 Semrush Rank: 513,757
Categories: Blogs/Wiki, Arts and Culture

Similar?
Yes 0 No 0

learnpianowithrosa.com
Learn Piano Tutorial Video Lessons: Learn How To Play Piano Chords By Ear or Keyboard With Rosa's Fun Method
Learn Piano Tutorial Lessons Online with Rosa's Fun & Easy Method |Beginners & Intermediate Piano or Keyboard Video Tutorial Lessons | Learn how to play piano color chords by ear and improvisation with free sheet music.

Facebook ♡: 0
Categories: Education/Reference, Education

Similar?
Yes 0 No 0

easypiano.com
Start Playing Piano Immediately And Have A Ton Of Fun In The Process!
Start Playing Piano Immediately And Have A Ton Of Fun In The Process!

Facebook ♡: 0
Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

makingmusicmag.com
Making Music Magazine | Connecting the world through music.
Connecting the world through music.

Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

ars-nova.com
Ars Nova - Music Instruction & Music Education Software
Comprehensive music theory and ear training software.

Moz DA: 38 Moz Rank: 4.1 Semrush Rank: 612,612 Facebook ♡: 0
Categories: Software/Hardware, Information Technology

Similar?
Yes 0 No 0

hoffmanacademy.com
Online Piano Lessons for Kids & Beginners | Hoffman Academy
Find your piano potential with Hoffman Academy's award-winning online piano lessons for kids & adults. Start to learn piano today for free! For kids 5+.

Semrush Rank: 29,392 Facebook ♡: 19,115
Categories: Entertainment, Entertainment

Similar?
Yes 0 No 0

gosk.com
The Guitarist's Online Survival Kit (GOSK)
The Guitarist's Online Survival Kit (GOSK) British multinational pharmaceutical and biotechnology company. GSK plc, formerly GlaxoSmithKline plc, is a British multinational pharmaceutical and biotechnology company with global headquarters in London, England. Established in 2000 by a merger of Glaxo Wellcome and SmithKline Beecham, GSK is the tenth largest pharmaceutical company and #294 on the 2022 Fortune Global 500, ranked behind other pharmaceutical companies China Resources, Sinopharm, Johnson & Johnson, Pfizer, Roche, AbbVie, Novartis, Bayer, and Merck.The company has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. As of August 2022, it had a market capitalisation of Â£70 billion, the eighth largest on the London Stock Exchange. It has a secondary listing on the New York Stock Exchange. The company developed the first malaria vaccine, RTS,S, which it said in 2014, it would make available for five percent above cost.

Semrush Rank: 603,842 Facebook ♡: 235
Categories: News/Weblogs, Arts/Music, Society/Issues, Recreation/Hobbies, Entertainment

Similar?
Yes 0 No 0

basicmusictheory.com
basicmusictheory.com: A music theory reference site
Music theory for notes, intervals, scales, modes, chords, circle of 5ths, with midi and mp3 audio, piano, treble and bass clef diagrams in all keys

Moz DA: 36 Moz Rank: 4.6 Semrush Rank: 27,115 Facebook ♡: 0
Categories: Recreation/Hobbies, Arts and Culture

Similar?
Yes 0 No 0

showscale.com
Show Scale - Find the key to any song | Music Scale Tool
Show Scale will help you find the music key or music scale you are looking for. Select one of the notes on the piano to start or view a full scale!

Semrush Rank: 1,668,578
Categories: Entertainment, Arts and Culture

Similar?
Yes 0 No 0

musicreadingsavant.com
Home - Music Reading Savant
Home - Music Reading Savant

Semrush Rank: 211,554
Categories: Entertainment, ???

Similar?
Yes 0 No 0

pianotv.net
Welcome to Piano TV - PianoTV.net
Welcome to PianoTV! Join a piano class this fall PianoTV school: PianoTV school is a collection of stepwise courses starting from a complete beginner level. Each course is taught in an online group format and typically runs two semesters (September – December and January – April/May). All lessons include weekly pieces to learn, lesson plans…

Semrush Rank: 144,583
Categories: Blogs/Wiki, Education

Similar?
Yes 0 No 0

ladydpiano.blogspot.com

Categories: Blogs/Wiki, Personal Websites and Blogs

Similar?
Yes 0 No 0

Suggest Site to this list (playpiano.com)

Please only suggest if the website is similar. We do check suggested websites carefully and only approve if it's completely similar.

Site Url

Why do you think it is similar?

Email address We'll never share your email with anyone else. You'll get a confirmation email.

3 (times) seven

I'm sure it's similar Yes

playpiano.com Reviews

No reviews have been made yet.

What is sitelike.org?

sitelike.org is a free tool to search and find Similar Websites, alternatives or related to the given site.
It helps you to find similar sites based on keyword overlap and shared audience.
Our team is manually checking and finding similar websites and also our visitors are helping us to find the best similar websites.
"Similar sites like" first finds the best and top keywords for all websites and rank them.
We also use our internal algorithm with analysing the website contents and also several web sources to determine the main topics of websites which are used to find similar websites that have the closest matching set of topics. Our ranking system uses user generated content created by our team, our visitors and also our algorithm.