On Mon 13 May 2024 at 03:21:35 (+0000), Peter Baughman wrote: > I have a few .ly files that work great and produce lovely pictures when I > build then with a command like: > > lilypond --png my_song.ly > > I started to play around with midi output and was a little suprised to find > that I needed to add a \midi code block to my file (instead of some other > command-line flag when building) but this was not a big deal - After 20 or 30 > minutes I figured out how to do it and got some lovely sound output. > > I was surprised, though to discover that when I built my songs they were no > longer producing png output. > > Is there a way to get both PNG and midi output from the same .ly file, or do > I need to invent some preprocessor step that adds a \midi block to a file or > perhaps removes one from a file to get png output?
In the absence of both \layout { } and \midi { }, LP produces a score. If you add a \midi { } and you still want a score, you must add a \layout { } too. Cheers, David.