pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-54500-372_Lesson_Second.ps) >>/Users/jc/w/tmp/Tune-54500-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JohnTreat/GftF/372_Lesson_Second.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-54500-372_Lesson_Second.abc 574 ABC music file with the extracted tune(s)
Tune-54500-372_Lesson_Second.ps 34483 PostScript
Tune-54500-372_Lesson_Second.txt 574 Plain-text file with the extracted tune(s)
Tune-54500-get.log 4612 Log file, useful mostly for debugging
These files should be available for 24 hours.