Re: Ritardandi and Accelerandi for MIDI

[Michael Welsh Duggan]

Han-Wen Nienhuys <address@hidden> writes:

> Michael Welsh Duggan wrote:
>> My only problem with this is the following:  It doesn't appear to
>> allow a crescendo to happen throught a single note without some extra
>> hackery added.  It would be better (IMHO) if we could emit
>> Audio_dynamic events (or Audio_tempo events) at discrete quantum
>> intervals.  It doesn't seem possible, however, to emit Audio_items at
>> any moments other than those defined in the Music proper.
>> Suggestions?  Maybe Audio_staff::audio_items_ can be a priority queue
>> (by moment), allowing us to emit events out of order?
>
> Check out Global_context::sneaky_add_extra_time_moment()
> It's the same mechanism that is used to maek sure that barlines always 
> appear.

Perfect.  I can definitely use this.  I'll see if I can't make the
output for dynamic spanners happen on discrete quanta, and make a
first stab at tempo spanners.

-- 
Michael Welsh Duggan
(address@hidden)