Multiple File Input
If more than one input file is given, a list of the filenames will be given with the identified scale type. For example, here are the analyses of the first few songs collected by Helen Creighton in Nova Scotia:
scaletyle *.krn nova001.krn: hexatonic nova002.krn: hexatonic nova003.krn: heptatonic nova004.krn: heptatonic nova005.krn: pentatonic nova006.krn: hexatonic nova007.krn: heptatonic nova008.krn: pentatonic nova009.krn: pentatonic nova010.krn: heptatonic nova011.krn: heptatonic nova012.krn: hexatonic ...If you want to count the number of songs in a set with a particular scale-type quality, you can pipe the output to the unix commands grep and wc -l:
scaletype *.krn | grep heptatonic | wc -lFor the set of Nova Scotia songs, the resulting count is 66, with hexatonic being 62, and pentatonic being 13.
By default, multiple files will be listed with their full pathnames according to the input. If you do not want to see the directory in which a file is located, you can add the -D option. Also, filenames can be suppressed with the -F option
scaletype -F *.krn hexatonic hexatonic heptatonic heptatonic pentatonic hexatonic heptatonic pentatonic pentatonic heptatonic heptatonic ...The -F option is useful for counting the number of songs in each category:
scaletype -F *.krn | sort | uniq -c | sort -nr 66 heptatonic 62 hexatonic 13 pentatonic 8 chromatic 3 toofew
Using the -p option will add additional pitch-class information after the scale-type designation.
scaletype -p nova001.krn hexatonic C D E F G A
The scaletype program cannot be used to identify the tonic of the scale, so the first pitch-class in the list is not necessarily the tonic note.
Here is an example of extracting diatonic pitch-class listings for all of the Bach Well-Tempered Clavier (syntax for bash shells):
for i in 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 do echo wtc1 $i ============================== scaletype -p h://wtc/wtc1p$i.krn # WTC1 Prelude scaletype -p h://wtc/wtc1f$i.krn # WTC1 Fugue echo wtc2 $i ===== scaletype -p h://wtc/wtc2p$i.krn # WTC2 Prelude scaletype -p h://wtc/wtc2f$i.krn # WTC2 Fugue done > wtc.txt
More example usages of the scaletype program are available on the scaletype examples page
program file.krnIt can also read the data over the web:
program http://www.some-computer.com/some-directory/file.krnPiped data works in a somewhat similar manner:
cat file.krn | programis equivalent to a web file using ths form:
echo http://www.some-computer.com/some-directory/file.krn | program
Besides the http:// protocol, there is another special resource indicator prefix called humdrum:// which downloads data from the kernscores website. For example, using the URI humdrum://brandenburg/bwv1046a.krn:
program humdrum://brandenburg/bwv1046a.krnwill download the URL:
Musedata Bach Brandenburg Concerto collection.
This online-access of Humdrum data can also interface with the classical Humdrum Toolkit commands by using humcat to download the data from the kernscores website. For example, try the command pipeline:
humcat humdrum://brandenburg/bwv1046a.krn | census -k