Sonic Visualiser is not available for Android but there are a few alternatives with similar functionality. The best Android alternative is Amazing Slow Downer, which is free. If that doesn't work for you, our users have ranked more than 10 alternatives to Sonic Visualiser, but unfortunately only two of them are available for Android. If you can't find an alternative you can try to filter for web or SaaS options.
Change the speed of the music - from 20% (one fifth speed) to 200% (double speed) without changing the pitch. Wrong key? Change the pitch in semi-tones - at full or changed speed. Out of tune? Adjust the pitch in cents (100ths of a semi-tone) to suit your instrument.
Without touching any control, MusicTrans will give you a graphical view of what notes are being played. An intermediate player can easily get the basic chords just by looking at the screen, and that’s just the tip of the iceberg!