# Music Number Wheel (Chords Scales Theory) Free > Music theory app for scales, chords, and improvisation on guitar, bass, piano. (iPhone/iPad app by David Commisso.) - Source: https://appshunter.io/ios/app/music-number-wheel-chords-scales-theory-free/id520934651 (this page in markdown: same URL + `.md`) - Developer: [David Commisso](https://appshunter.io/developer/412793051) - Category: Music, Utilities - Price: Free - Rating: 2.70/5 from 3 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 5.1 · 1 MB - Languages: American English - Released: 2012-04-27 - Data updated: 2026-06-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/music-number-wheel-chords-scales-theory-free/id520934651/reviews.md ## What is Music Number Wheel (Chords Scales Theory) Free? Get to know your scales and chords. This app will teach you some of the different scales and chords and their relating number interval system which can be applied towards your instrument of choice! -Geared for Guitar, Bass, and Piano -Set Key, Scale, or Chord -Shows relating number(Roman Numeral)interval and note names -Aids with improvising -Easy key set for all 12 keys -Free for All! - Ad supported ## Key features - Learn scales and chords - Visualize number interval system - Display note names - Supports guitar, bass, piano - Easy key selection - Aids improvisation ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/music-number-wheel-chords-scales-theory-free/id520934651/reviews.md ### 2/5 — Was good *2014-06-09* Was good when it first came out. Now the letters dont line up inside the rectangles which are supposed to show the chords. Too bad. ### 1/5 — It Doesn't Open! *2013-03-09* It just force-closes when attempting to open! Please fix this! ### 5/5 — Excellent *2012-06-01* This is a pretty nice chord wheel, will play them as well. Has the info it says & is perfect without getting overly complicated. Nice app, wish I could remove the ads. Thank you ## Frequently asked questions about Music Number Wheel (Chords Scales Theory) Free ### What instruments does Music Number Wheel support? Music Number Wheel is geared for guitar, bass, and piano. It helps users understand scales and chords applicable to their instrument of choice. ### How does Music Number Wheel help with improvisation? The app shows relating number intervals and note names for scales and chords, which aids users in improvising by providing a framework for musical exploration. ### Can I set a specific key, scale, or chord in Music Number Wheel? Yes, you can set the key, scale, or chord you want to focus on. The app also features an easy key set for all 12 keys. ### Is Music Number Wheel available on Android devices? Based on the provided data, Music Number Wheel is supported on iPhone and iPod. Information regarding Android compatibility is not available. ### What is the update frequency for Music Number Wheel? Music Number Wheel was last updated on January 23, 2013, with version 2.0. This indicates infrequent updates. ### What is the user rating for Music Number Wheel? Music Number Wheel has a rating of 2.7 stars from 3 ratings. This suggests a mixed or slightly negative user reception based on the limited feedback. ### Does Music Number Wheel have ads? The app description states it is 'Ad supported'. Therefore, users can expect to encounter advertisements while using Music Number Wheel. ### What is the age rating for Music Number Wheel? Music Number Wheel has an age rating of 4+. This means it is considered suitable for children aged 4 and above. ## Version history (last 5 releases) ### 2.0 — 2013-01-23 *Updated to take advantage of iPhone 5 and iPod 5 screen ### 1.8 — 2012-12-07 -Fix for some unreadable buttons -Can play succession of minor 7 chords fixed ### 1.7 — 2012-11-19 -DO NOT download, some buttons Unreadable, FIX is on its way! ### 1.6 — 2012-06-21 -Bug Fixes ### 1.5 — 2012-05-18 Sound has been added! Listen to all the chords and scales to learn how they sound in music. ## More apps by David Commisso - [Auction eCalc - "for Ebay Paypal Profit Calculator"](https://appshunter.io/ios/app/auction-ecalc-for-ebay-paypal-profit-calculator/id429566934) - [DCs iSuper Grader (A+ 123 Easy Simple Grading Calculator)](https://appshunter.io/ios/app/dcs-isuper-grader-a-plus-123-easy-simple-grading-calculator/id436300886) - [Auction Calc (for Ebay Paypal Profit Projections)](https://appshunter.io/ios/app/auction-calc-for-ebay-paypal-profit-projections/id572326911) - [Teacher Grader](https://appshunter.io/ios/app/teacher-grader/id6763839265) All apps by David Commisso: https://appshunter.io/developer/412793051 ## Related topics [theory number](https://appshunter.io/ios/topics/theory-number) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-24.*