Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/MM1/Urbani_Liston_1800.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-15032-Urbani_Liston_1800.ps) >>/Users/jc/w/tmp/Tune-15032-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/MM1/Urbani_Liston_1800.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-15032-EliasHowe_MusiciansCompanionP1-1842-V2.abc 176 ABC music file with the extracted tune(s)
Tune-15032-EliasHowe_MusiciansCompanionP1-1842-V2.ps 6 PostScript
Tune-15032-EliasHowe_MusiciansCompanionP1-1842-V2.txt 176 Plain-text file with the extracted tune(s)
Tune-15032-Stewart_SCAJMR_1784-V1.abc 159 ABC music file with the extracted tune(s)
Tune-15032-Stewart_SCAJMR_1784-V1.ps 6 PostScript
Tune-15032-Stewart_SCAJMR_1784-V1.txt 159 Plain-text file with the extracted tune(s)
Tune-15032-Urbani_Liston_1800.abc 154 ABC music file with the extracted tune(s)
Tune-15032-Urbani_Liston_1800.ps 6 PostScript
Tune-15032-Urbani_Liston_1800.txt 154 Plain-text file with the extracted tune(s)
Tune-15032-get.log 13194 Log file, useful mostly for debugging
These files should be available for 24 hours.