Sun Piano

about

description

Sun Piano is an electronic piano for Android. Every sound is synthesized in real time by its own engine, so the app is small and needs no sample downloads. **Keyboard** - All 88 keys, multitouch, with a mini-map to jump anywhere on the keyboard - Glissando: slide a finger across the keys to play each one - Loudness from where you touch a key - Note names as letters or Do-Re-Mi, 7 to 28 visible keys, octave buttons - Tablets held upright (Android 16 and newer) show two keyboards stacked **Sound** - 8 instruments: Piano, Electric Piano, Honky-Tonk, Organ, Strings, Harpsichord, Marimba, Synth Lead - 24-voice polyphony, sustain pedal, stereo reverb, low-latency audio - Transpose and tuning (A4 from 415 to 466 Hz) **Practice and recording** - Metronome with tempo, time signature, tap tempo and beat indicator - Record and play back what you play. Each recording keeps every note's instrument, even when you switch instruments in the middle, and the settings it was made with, such as the tuning - A Library to play, rename and delete recordings **Share and import** - Share a recording as audio (.m4a), which plays on any phone or computer and in messaging apps - Share it as a standard MIDI file, with General MIDI instruments, to edit the notes in other music programs - Import MIDI files from other apps: all tracks, tempo changes and the sustain pedal, with their instruments matched to Sun Piano's sounds (drums are left out) **Connect a keyboard** - USB MIDI keyboards, and Bluetooth LE MIDI keyboards found and connected from Settings (notes and sustain pedal) - A computer keyboard: Z to M and Q to U play two octaves, Space is the sustain pedal No ads, no tracking, no internet access. Free software under the GNU GPL v3 or later.

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-10-14T16:52:03.200520+00:00

last event

2026-10-15 05:58 UTC

install

zapstore.dev or any Zapstore-compatible client

topics

#music practice tool

source & build

repository

https://codeberg.org/alimiracle/sun-piano

arch flags

android-arm64-v8a android-armeabi-v7a android-x86 android-x86_64

manifest

skipped

releases (kind 30063)

2 releases indexed; latest 1.0.

version	channel	released	event
1.0	main	2026-10-15 05:58 UTC	f5953c7a…
0.9	main	2026-10-11 07:30 UTC	df2667ef…

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

1.0 — sun-piano-1.0.apk

sha256

63b09ebe05c33c90a5aedf597462df6afa67e8948957bb77ce2d37231b71bfbe

size

2.4 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

2

apk cert sha256

02226fdacb7cbfba69e9f3f66f3448e072dd96be3ae75c78dde3bb58eaf20929

download

sun-piano-1.0.apk

0.9 — sun-piano-0.9.apk

sha256

35fd4fc3eb772b4aebcc3bad53b5546133f647f7373b623e43a2257fd60d89de

size

1.7 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

1

apk cert sha256

02226fdacb7cbfba69e9f3f66f3448e072dd96be3ae75c78dde3bb58eaf20929

download

sun-piano-0.9.apk

Showing the newest 2 asset descriptors; the full set is in /api/apps/78ce6faa…