pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-17471-11161-March_in_Elhyder-V1.ps) >>/Users/jc/w/tmp/Tune-17471-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP1/11161-March_in_Elhyder-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_17471.log 330540 Log file, useful mostly for debugging
Tune-17471-11161-March_in_Elhyder-V1.abc 3432 ABC music file with the extracted tune(s)
Tune-17471-11161-March_in_Elhyder-V1.ps 68919 PostScript
Tune-17471-11161-March_in_Elhyder-V1.txt 3432 Plain-text file with the extracted tune(s)
Tune-17471-get.log 5053 Log file, useful mostly for debugging
These files should be available for 24 hours.