We have a bunch of musician apps available on the Google Play Store that can help almost all kinds of musicians, including guitarist, pianist, orchestra players, and others.
Here are some best musician apps available for Android.Audio Evolution Mobile StudioAudio Evolution Mobile Studio is a pretty decent mobile digital workstation that features a bunch of necessary stuff, including tools for multi-track recording and playback, MIDI sequencing, a metronome, latency, looped playback, and a few other things.
But you can use its free version as well, which also works well.gStrings TunergStrings Tuner is a quite decent guitar training app, but you can learn other stuff on the app, including various stringed instruments, woodwinds, etc.
However, the app will cost you $3.99 for the premium version.Hi-Q MP3 Voice RecorderHi-Q MP3 is an excellent voice recorder app that you can use to perform many basic stuff like recording your voice and doing other related stuff.
It boasts some decent features such as MP3 recording, support for 44KHz audio sampling, and multiple file-formats including WAV, FLAC, OGG, M4A, etc.
It is undoubtedly a great musician app to record your ideas or songs; you can use it for free.