Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1762/dance.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5201-dance.ps) >>/Users/jc/w/tmp/Tune-5201-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1762/dance.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_52012.log 845 Log file, useful mostly for debugging
Tune-5201-IgnatiusSancho_CNS_v2.abc 158 ABC music file with the extracted tune(s)
Tune-5201-IgnatiusSancho_CNS_v2.pdf 2217 Portable Data Format
Tune-5201-IgnatiusSancho_CNS_v2.ps 6 PostScript
Tune-5201-IgnatiusSancho_CNS_v2.txt 158 Plain-text file with the extracted tune(s)
Tune-5201-dance.abc 142 ABC music file with the extracted tune(s)
Tune-5201-dance.ps 6 PostScript
Tune-5201-dance.txt 142 Plain-text file with the extracted tune(s)
Tune-5201-get.log 9137 Log file, useful mostly for debugging
Tune-52012-get.log 3205 Log file, useful mostly for debugging
Tune-52017-Thompson_V4_1773-1780_PD.abc 161 ABC music file with the extracted tune(s)
Tune-52017-Thompson_V4_1773-1780_PD.txt 161 Plain-text file with the extracted tune(s)
Tune-52017-get.log 3440 Log file, useful mostly for debugging
Tune-52018-get.log 4735 Log file, useful mostly for debugging
Tune-52018-proto.abc 142 ABC music file with the extracted tune(s)
Tune-52018-proto.pdf 2217 Portable Data Format
Tune-52018-proto.ps 6 PostScript
Tune-52018-proto.txt 142 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.