Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Potpourri/CSGBT_1794-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7653-CSGBT_1794-V2.ps) >>/Users/jc/w/tmp/Tune-7653-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Potpourri/CSGBT_1794-V2.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-7653-CSGBT_1794-V2.abc 155 ABC music file with the extracted tune(s)
Tune-7653-CSGBT_1794-V2.ps 6 PostScript
Tune-7653-CSGBT_1794-V2.txt 155 Plain-text file with the extracted tune(s)
Tune-7653-get.log 7545 Log file, useful mostly for debugging
Tune-76530-get.log 7169 Log file, useful mostly for debugging
Tune-76532-get.log 4098 Log file, useful mostly for debugging
Tune-76534-CR1-abc2.abc 157 ABC music file with the extracted tune(s)
Tune-76534-CR1-abc2.pdf 2217 Portable Data Format
Tune-76534-CR1-abc2.ps 6 PostScript
Tune-76534-CR1-abc2.txt 157 Plain-text file with the extracted tune(s)
Tune-76534-get.log 8917 Log file, useful mostly for debugging
Tune-76536-get.log 3738 Log file, useful mostly for debugging
Tune-76537-get.log 5404 Log file, useful mostly for debugging
Tune-76539-get.log 3928 Log file, useful mostly for debugging
These files should be available for 24 hours.