pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-936-21402_Milford_Sett_tune_2.ps) >>/Users/jc/w/tmp/Tune-936-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP2/21402_Milford_Sett_tune_2.abc

Error exit status 256; here are some files to check:

[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_93600.log 281520 Log file, useful mostly for debugging
Coll_93608.log 275900 Log file, useful mostly for debugging
Coll_93611.log 281520 Log file, useful mostly for debugging
Coll_93622.log 281520 Log file, useful mostly for debugging
Coll_9363.log 553205 Log file, useful mostly for debugging
Coll_93633.log 281520 Log file, useful mostly for debugging
Coll_93642.log 1256540 Log file, useful mostly for debugging
Coll_93644.log 281520 Log file, useful mostly for debugging
Coll_93655.log 281520 Log file, useful mostly for debugging
Coll_93658.log 1524250 Log file, useful mostly for debugging
Coll_9366.log 281520 Log file, useful mostly for debugging
Coll_93667.log 281520 Log file, useful mostly for debugging
Coll_9367.log 280115 Log file, useful mostly for debugging
Coll_93676.log 1248351 Log file, useful mostly for debugging
Coll_93678.log 281520 Log file, useful mostly for debugging
Coll_93689.log 281520 Log file, useful mostly for debugging
Coll_93691.log 285738 Log file, useful mostly for debugging
Find_93638.log 1423 Log file, useful mostly for debugging
Tune-936-21402_Milford_Sett_tune_2.abc 1107 ABC music file with the extracted tune(s)
Tune-936-21402_Milford_Sett_tune_2.ps 35702 PostScript
Tune-936-21402_Milford_Sett_tune_2.txt 1107 Plain-text file with the extracted tune(s)
Tune-936-get.log 4992 Log file, useful mostly for debugging
Tune-93636-get.log 4737 Log file, useful mostly for debugging
Tune-93636-slurs.abc 142 ABC music file with the extracted tune(s)
Tune-93636-slurs.pdf 2217 Portable Data Format
Tune-93636-slurs.ps 6 PostScript
Tune-93636-slurs.txt 142 Plain-text file with the extracted tune(s)
Tune-93655-Kohlers3.abc 145 ABC music file with the extracted tune(s)
Tune-93655-Kohlers3.ps 6 PostScript
Tune-93655-Kohlers3.txt 145 Plain-text file with the extracted tune(s)
Tune-93655-get.log 4070 Log file, useful mostly for debugging
Tune-93660-AMHSI_abc2.abc 147 ABC music file with the extracted tune(s)
Tune-93660-AMHSI_abc2.txt 147 Plain-text file with the extracted tune(s)
Tune-93660-get.log 3184 Log file, useful mostly for debugging
Tune-93689-RSCDS_Graded1.abc 150 ABC music file with the extracted tune(s)
Tune-93689-RSCDS_Graded1.ps 6 PostScript
Tune-93689-RSCDS_Graded1.txt 150 Plain-text file with the extracted tune(s)
Tune-93689-get.log 4054 Log file, useful mostly for debugging
Tune-93697-Gow-CSR4-abc1.abc 150 ABC music file with the extracted tune(s)
Tune-93697-Gow-CSR4-abc1.ps 6 PostScript
Tune-93697-Gow-CSR4-abc1.txt 150 Plain-text file with the extracted tune(s)
Tune-93697-get.log 4054 Log file, useful mostly for debugging
These files should be available for 24 hours.