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\version "2.12.3" | |
% vibrato.ly | |
% Author: Mark Witmer | |
% Sets the next trill spanner to draw a waveform with the provided wevelength | |
% and amplitudes. The waveform will go from one amplitude to the next in a | |
% linear fashion. | |
vibrato = #(define-music-function (parser location amplitudes wavelength) (list? number?) #{ | |
\once \override TrillSpanner #'after-line-breaking = #(lambda (grob) |