SYNOPSIS
struct Chord *popupchord(struct Chord *originalchord)
ARGUMENTS
`struct Chord *originalchord'
Previous chord (or 0).
DESCRIPTION
`popupchord()' opens a scrolling pop-up menu with all of the system
chords and lets the user choose a new chord. `popupchord()'
returns a pointer to the selected chord. If the user doesn't
select any chord, `popupchord()' returns originalchord.
SEE
See popupscale(), popuprhythm().