Chords Maestro Base

Chords Maestro Base is an app that offers all the major chords for 7 musical instruments: piano, guitar, bass guitar, ukulele, banjo, mandolin, and balalaika.

You just pick your instrument, then your chord and play it. The program will also show you instrument-specific music notes or chord diagrams for your chord, as well as the corresponding finger position on your instrument. The tool supports both right- and left-handed players.