Piano Chords: keys + accordion
Piano Chords: keys + accordion
Download on App Store

This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.

Logo of Piano Chords: keys + accordion
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Piano Chords: keys + accordion

Experience the power of the Stradella bass system on your mobile device. Designed for ergonomic playability and musical exploration, this is the ultimate tool to compose, record MIDI, and play full songs anywhere.

Key Figures

Downloads

100+

User Rating

1.0/5

Total Ratings

0

Publisher

Alexandr Fenster

Category

Music

Locales

1

Latest Version

1.5.2

Size

30.7 MB

First Released

Jun 3, 2025
Features

Play Full Songs with Just Your Thumbs

Combine a professional piano keyboard with the logic of an accordion’s Stradella bass system. Designed for musicians who want to play, practice, and record music on the go without the physical constraints of traditional mobile piano apps.

Ergonomic Thumb-First Layout

Stop struggling with cramped interfaces. Our layout is optimized for mobile ergonomics, allowing you to play complex melodies and chords comfortably using only your thumbs.

Smart Stradella Bass System

Leverage the circle of fifths. With chords grouped by musical relationship, you can add rich, harmonic accompaniment to any song without needing years of piano training.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Piano Chords: keys + accordion - Interface of Piano Chords app showing accordion chord buttons and piano keyboard

Interface of Piano Chords app showing accordion chord buttons and piano keyboard

Piano Chords: keys + accordion - A chord button keyboard interface featuring the Stradella bass system for playing accordion chords on a mobile device.

A chord button keyboard interface featuring the Stradella bass system for playing accordion chords on a mobile device.

Piano Chords: keys + accordion - A screen showing the Piano Chords app interactive tutorial and musical keyboard

A screen showing the Piano Chords app interactive tutorial and musical keyboard

Piano Chords: keys + accordion - Interface of the Piano Chords app showing a piano keyboard and Stradella accordion chord buttons in dark mode.

Interface of the Piano Chords app showing a piano keyboard and Stradella accordion chord buttons in dark mode.

Description

Play music on your phone, both melody and chords at the same time! Among many piano apps in the store, this one makes it easy to play your melody with accordion chords. Use your right thumb to play the melody, and use your left thumb to play chords using the buttons conveniently located in the top left of the screen. Or convert it to the chord only keyboard by switching a toggle in settings! I like being able to play a melody on my phone, and I could not find an app which makes it really easy, so I made my own. Play your melody on a large piano keyboard, designed not for being visually appealing, but for being usable when you play with your thumbs. Use the Stradella chord keyboard, inspired by accordion buttons, to add chords to your melody. Five rows of accordion buttons are available: bass, counter bass, major chord, minor chord, and major seventh chord. Notes are arranged following the circle of fifth. If you have never played accordion, you should try! The left hand section has several rows of buttons, each of which are arranged in the circle of fifth, which is called Stradella bass system. It takes just a few minutes to realize that this is extremely useful for playing chords, because related chords are located near each other: if you take C major, then F major is on the left, and G major on the right; if you take A minor, then D minor is on the left, and E major on the right. Look at the provided demo melodies and you'll be playing your own music in no time! You can also record your melody and share it with your friends in a MIDI format. I hope you enjoy the app!

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Download on App Store

This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.