Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1796/CaledonianMusicalRepository_1811.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4232-CaledonianMusicalRepository_1811.ps) >>/Users/jc/w/tmp/Tune-4232-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1796/CaledonianMusicalRepository_1811.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-4232-CaledonianMusicalRepository_1811.abc 169 ABC music file with the extracted tune(s)
Tune-4232-CaledonianMusicalRepository_1811.ps 6 PostScript
Tune-4232-CaledonianMusicalRepository_1811.txt 169 Plain-text file with the extracted tune(s)
Tune-4232-get.log 4526 Log file, useful mostly for debugging
Tune-42321-10352_Anti_Tyrolian_Waltz.abc 699 ABC music file with the extracted tune(s)
Tune-42321-10352_Anti_Tyrolian_Waltz.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-42321-10352_Anti_Tyrolian_Waltz.ps 34656 PostScript
Tune-42321-10352_Anti_Tyrolian_Waltz.txt 699 Plain-text file with the extracted tune(s)
Tune-42321-get.log 5809 Log file, useful mostly for debugging
Tune-42323-get.log 1248 Log file, useful mostly for debugging
Tune-42329-get.log 1250 Log file, useful mostly for debugging
These files should be available for 24 hours.