cresc = \spanrequest \start "crescendo"
endcresc = \spanrequest \stop "crescendo"
+sustaindown = \spanrequest \start "sustain"
+sustainup = \spanrequest \stop "sustain"
+
%crescpoco = \property Voice.crescendoText = "cresc. poco a poco"
%decresc = \property Voice.crescendoText = "decr."
%dim = \property Voice.crescendoText = "dim."