Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/CentColl/EliasHowe_MusiciansCompanionP3-1844-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3818-EliasHowe_MusiciansCompanionP3-1844-V2.ps) >>/Users/jc/w/tmp/Tune-3818-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CentColl/EliasHowe_MusiciansCompanionP3-1844-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
Form_38181.abc 947 ABC music file with the extracted tune(s)
Form_38181.log 1112 Log file, useful mostly for debugging
Form_38181_001.svg 44590 Scalable Vector Graphics format
Tune-3818-EliasHowe_MusiciansCompanionP3-1844-V2.abc 179 ABC music file with the extracted tune(s)
Tune-3818-EliasHowe_MusiciansCompanionP3-1844-V2.ps 6 PostScript
Tune-3818-EliasHowe_MusiciansCompanionP3-1844-V2.txt 179 Plain-text file with the extracted tune(s)
Tune-3818-get.log 8810 Log file, useful mostly for debugging
Tune-38182-24AmericanCountryDances_1785_Cantelo.abc 192 ABC music file with the extracted tune(s)
Tune-38182-24AmericanCountryDances_1785_Cantelo.txt 192 Plain-text file with the extracted tune(s)
Tune-38182-get.log 3768 Log file, useful mostly for debugging
Tune-38183-get.log 6093 Log file, useful mostly for debugging
Tune-38184-get.log 32799 Log file, useful mostly for debugging
Tune-38188-get.log 3710 Log file, useful mostly for debugging
Tune-38189-get.log 4610 Log file, useful mostly for debugging
These files should be available for 24 hours.