((ly:pitch? #{ f #}) ly:music?)
#{ \relative $ref $music #})
% Let's take a duration and four pitches, defaulting to 2 c' d' e'
zap =
((ly:pitch? #{ f #}) ly:music?)
#{ \relative $ref $music #})
% Let's take a duration and four pitches, defaulting to 2 c' d' e'
zap =