I like Phil's suggestion, but we still need to answer the original question to figure out what it is we're backing up from.
L=1/4 and [FG/]G My vote is that the chord lasts 1 eighth note. Just because it seems like you'd want to do: L=1/4 and [FG/]G/ and beam the two G's together. Otherwise you're missing an eigth note and the program has to guess that you want a rest there. In a message dated 1/19/2003 5:36:42 AM Eastern Standard Time, [EMAIL PROTECTED] writes: > > > John Chambers wrote: > > >Phil Taylor writes: > >| > >| >2. L=1/4 and [FG/]G , what beat is the second 'G' on? 2 or and-of-one? > >| > >| Undefined, I'm afraid. > >| > >| MusicXML has an interesting construct to deal with this kind of situation. > >| The <backup> and <forward> tags have the effect of moving the time point, > >| so you can use <backup> to go back to the start of a measure in order to > >| add an extra layer of notes. This means that you can deal with temporary > >| voices which appear and disappear in the course of a piece. > >| > >| Maybe we need something similar in abc? > > > >I sorta recall reading about just such a feature in > >abc2mtex, with a comment that it probably wouldn't work > >with other abc programs. I've never read about anyone else > >ever implementing it. > > > >Now what was that syntax? ... > > I don't remember that. Anybody know? > > Otherwise let's think about how we might implement it. Perhaps it's time > to make use of one of the few remaining precious ascii symbols like $ or &. > We only need one symbol for <backup> since <forward> is an invisible rest, > and x will do fine. Then again, none of the currently-unused symbols > have the necessary negative connotations. < would be the obvious choice > if it were not already in use. How about using the invisible rest with > a negative number following: > > x-4 means backup four default note lengths > x- means backup one default note length > x-/ means backup half a def note > and so on. > > So Aaron's original example ( L=1/4 and [FG/]G ) could be written as > > F x- G/ x/ A (the A when after the F ends) > > or > > F x- G/ A3 (the A starts when the G ends) > > Phil Taylor > > > To subscribe/unsubscribe, point your browser to: > http://www.tullochgorm.com/lists.html To subscribe/unsubscribe, point your browser to: http://www.tullochgorm.com/lists.html
