pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-93144-10444_Sailor_Set_On_Shore.ps) >>/Users/jc/w/tmp/Tune-93144-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP1/10444_Sailor_Set_On_Shore.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-93144-10444_Sailor_Set_On_Shore.abc 664 ABC music file with the extracted tune(s)
Tune-93144-10444_Sailor_Set_On_Shore.ps 34945 PostScript
Tune-93144-10444_Sailor_Set_On_Shore.txt 664 Plain-text file with the extracted tune(s)
Tune-93144-Thompson_V4_1773-1780_PD.abc 161 ABC music file with the extracted tune(s)
Tune-93144-Thompson_V4_1773-1780_PD.ps 6 PostScript
Tune-93144-Thompson_V4_1773-1780_PD.txt 161 Plain-text file with the extracted tune(s)
Tune-93144-get.log 9526 Log file, useful mostly for debugging
These files should be available for 24 hours.