@@ only works in VGM

[bazz1tv]

STOCK BuG I have not fully tested @@ but in this case it only works on VGM:

properly you will hear noise followed by a tone for each note.

; xpmc -sgg test.mml test.vgm
@0 = {0'10 1}

D t60 l4
D v10 @@0 d d d d