120 Bass Chords

120 Bass Chords is a music app built around chords on a 120-bass accordion layout, so it speaks to accordion players and people learning that keyboard-hand side of the instrument. By our assessment, its appeal is very practical: the name tells you exactly what it is for, and that kind of directness can make practice less confusing. The limit is equally plain, because a tool this specific will not interest anyone outside that instrument world. In use, the value comes from having the chord shapes in one place instead of hunting through a wider theory app. It sits in a narrow corner of music apps, somewhere between a tutor and a reference sheet, and that narrowness is also why the audience is small. The app only makes sense if the 120-bass system is already part of the player’s life.