Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Pioneer/Kerr_MM4-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1792-Kerr_MM4-V1.ps) >>/Users/jc/w/tmp/Tune-1792-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Pioneer/Kerr_MM4-V1.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-130-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-130-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-130-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-1792-Kerr_MM4-V1.abc 151 ABC music file with the extracted tune(s)
Tune-1792-Kerr_MM4-V1.ps 6 PostScript
Tune-1792-Kerr_MM4-V1.txt 151 Plain-text file with the extracted tune(s)
Tune-1792-get.log 4101 Log file, useful mostly for debugging
Tune-17928-SkillernChalloner_PCD2.abc 159 ABC music file with the extracted tune(s)
Tune-17928-SkillernChalloner_PCD2.ps 6 PostScript
Tune-17928-SkillernChalloner_PCD2.txt 159 Plain-text file with the extracted tune(s)
Tune-17928-get.log 4243 Log file, useful mostly for debugging
Tune-17929-get.log 3292 Log file, useful mostly for debugging
Tune-23115-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-23115-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-37260-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-37260-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-37260-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-47466-24CountryDances_1792_Thompson.abc 172 ABC music file with the extracted tune(s)
Tune-47466-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-47466-24CountryDances_1792_Thompson.txt 172 Plain-text file with the extracted tune(s)
Tune-56157-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-56157-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-56157-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-61022-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-61022-24CountryDances_1792_Thompson.pdf 2217 Portable Data Format
Tune-61022-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-61022-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-63082-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-63082-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-73460-24CountryDances_1792_Thompson.abc 165 ABC music file with the extracted tune(s)
Tune-73460-24CountryDances_1792_Thompson.pdf 2217 Portable Data Format
Tune-73460-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-73460-24CountryDances_1792_Thompson.txt 165 Plain-text file with the extracted tune(s)
Tune-73984-24CountryDances_1792_Thompson.abc 172 ABC music file with the extracted tune(s)
Tune-73984-24CountryDances_1792_Thompson.pdf 2217 Portable Data Format
Tune-73984-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-73984-24CountryDances_1792_Thompson.txt 172 Plain-text file with the extracted tune(s)
Tune-74762-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-74762-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-75299-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-75299-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-7825-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-7825-24CountryDances_1792_Thompson.pdf 2217 Portable Data Format
Tune-7825-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-7825-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-82073-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-82073-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-82073-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-87392-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-87392-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-93745-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-93745-24CountryDances_1792_Thompson.pdf 2217 Portable Data Format
Tune-93745-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-93745-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-94297-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-94297-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-98256-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-98256-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-98256-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.