[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Midi block gives errors with bar number checks

From: Peter Toye
Subject: Re: Midi block gives errors with bar number checks
Date: Wed, 27 Nov 2019 09:36:28 +0000


I've been thinking about this, and my guess is that LP uses the bar number to 
calculate the beat clock. And when there are repeats, MIDI bar number != 
engraving bar number, so it goes wrong. This is presumably why the MIDI 
generator in LP doesn't handle repeats, and to make it do so would, I imagine, 
be a major programming task and probably not worth the effort.

I'm not sure how many LP user use the MIDI output anyway, given its 
restrictions. Personally, I use it for proof-reading only, so lack of repeats 
isn't an issue.

I think it needs a mention in the documentation as you suggest. I'll try to 
work something up - I already have one documentation issue that I promised to 
help with.

Best regards,


Tuesday, November 26, 2019, 7:12:47 PM, Carl Sorensen wrote:

From: Peter Toye <address@hidden>
Reply-To: Peter Toye <address@hidden>
Date: Tuesday, November 26, 2019 at 11:43 AM
To: Carl Sorensen <address@hidden>, "address@hidden" <address@hidden>
Subject: Re: Midi block gives errors with bar number checks

I've just found the MIDI "beat clock" - 24 per crotchet. Still no bar numbers 
Hmm, I’ve been using MIDI on a MacBook using GarageBand.  Apparently Apple has 
added a framework called Core MIDI that adds the concepts of Bars, Beats, and 
SubBeats to the MIDI time stream.  So I always have Bars in mm work.
I suppose that one could make the midi performer ignore \barNumberCheck.  The 
only time I can imagine that would be problematic is if one were only  using 
LilyPond to create a midi file.   And I suppose that as long as it were 
properly documented, users would not expect it to work.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]