Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1753/Thompson_V4_1773-1780_PD.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7390-Thompson_V4_1773-1780_PD.ps) >>/Users/jc/w/tmp/Tune-7390-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1753/Thompson_V4_1773-1780_PD.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_73902.log 280115 Log file, useful mostly for debugging
Tune-7390-Thompson_V4_1773-1780_PD.abc 161 ABC music file with the extracted tune(s)
Tune-7390-Thompson_V4_1773-1780_PD.ps 6 PostScript
Tune-7390-Thompson_V4_1773-1780_PD.txt 161 Plain-text file with the extracted tune(s)
Tune-7390-get.log 4360 Log file, useful mostly for debugging
Tune-73902-Rutherford_Compleat_Collection_V1.abc 167 ABC music file with the extracted tune(s)
Tune-73902-Rutherford_Compleat_Collection_V1.pdf 2217 Portable Data Format
Tune-73902-Rutherford_Compleat_Collection_V1.ps 6 PostScript
Tune-73902-Rutherford_Compleat_Collection_V1.txt 167 Plain-text file with the extracted tune(s)
Tune-73902-get.log 5531 Log file, useful mostly for debugging
These files should be available for 24 hours.