At 11:40 AM 11-15-2001 -0500, [EMAIL PROTECTED] you wrote: >A couple of questions: > > Q:Allegro > >Should display "Allegro." But for playback, should it use a default >tempo, or take a reasonable guess as to the appropriate beat, or generate >an error? The same question applies if "Allegro" is used but never >defined.
My feeling is that on playback Q:Allegro should use the current definition of the beat as a default, but use the defined bpm tempo. Example: X: 1 T: Simple scales, in arpegios of 3rds. Q: Slow=60 Q: Quick=90 M: 6/8 L: 1/8 K: C Q: 3/8=Slow CEG DFA | EGb FAc | Gbd Ace | Q: Quick ecA dbG | cAF bGE | AFD GEC | Should display "Slow" for the first bar, "Quick" for the second. Playback should play the first bar in about 6 seconds, the second in about 4. (That example suggested a utility for a "Q:3/8" line, which would define the timing beat of the work. Hence, "Q:3/8" would go above the "K:" line, and the first Q line after the K: could read simply "Q: Slow". If a "Q: Slow" is given, but there is no previous Q: specifiying a beat, going with the L: setting, or some reasonable default for the beat length is probably best. If "Q:undefinedtempo" is encountered, I think the best the standard should/could do say that the playback speed is implementation dependent, and encourage developers to provide a way for the user to control it. >Also, there must be some way of displaying 3/8=120 AND "Allegro" at the >same time (two Q: fields?), and interpreting "=" and "3/8" as ordinary >characters. Dunno... Another thought: I wonder if it would make sense to not use "=" for two purposes. In "Q: Allegro=120", the "=" is defining the meaning of Allegro. In "Q: 3/8=Allegro", = is setting the speed of a 3/8 note. In "Q: 3/8=Allegro=120", it's doing both. Could a different symbol be used for one of those purposes, like "==" or ":="? "Q: Allegro:=120"? "Q: 3/8==Allegro"? "Q:3/8=Allegro:=120"? Not a big deal, feel free to reject it. However, I do see the possibility of "symbol:=value" as being potentially useful for the beginnings of a macro facility (which may prove useful elsewhere). >John > >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
