pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7860-30262-Webers_Last_Waltz-V1.ps) >>/Users/jc/w/tmp/Tune-7860-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30262-Webers_Last_Waltz-V1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_7860.log 462609 Log file, useful mostly for debugging
Form_78601.log 957 Log file, useful mostly for debugging
Form_78605.log 1020 Log file, useful mostly for debugging
Form_78606.log 1009 Log file, useful mostly for debugging
Form_78607.log 1018 Log file, useful mostly for debugging
Tune-7860-30262-Webers_Last_Waltz-V1.abc 1309 ABC music file with the extracted tune(s)
Tune-7860-30262-Webers_Last_Waltz-V1.ps 38175 PostScript
Tune-7860-30262-Webers_Last_Waltz-V1.txt 1309 Plain-text file with the extracted tune(s)
Tune-7860-get.log 5119 Log file, useful mostly for debugging
Tune-78602-get.log 1339 Log file, useful mostly for debugging
These files should be available for 24 hours.