Humdrum Lab 2 - Revision history

Craig: /* Selecting by scaletype and meter */

2020-04-23T20:08:23Z

Selecting by scaletype and meter

← Older revision		Revision as of 20:08, 23 April 2020
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	scaletype `grep -l '^\M3/4' .krn` \| grep heptatonic		scaletype `grep -l '^\M3/4' .krn` \| grep heptatonic
			or
			scaletype $(grep -l '^\M3/4' .krn) \| grep heptatonic

	The text in the backquotes is a command ~~which is~~ run first, then the result is passed as arguments to the scaletype program. In this case `-l` (lower-case L) means that grep should display all filenames for files that have a match for the regular expression.
			The text in the backquotes or $() is a command thatis run first, then the result is passed as arguments to the scaletype program. In this case `-l` (lower-case L) means that grep should display all filenames for files that have a match for the regular expression.

	Note that this method will have problems if the song changes the meter after the start of the music (if any of the meters in the file are matching to 3/4, then the whole file is being considered).		Note that this method will have problems if the song changes the meter after the start of the music (if any of the meters in the file are matching to 3/4, then the whole file is being considered).

2020-04-23T20:04:59Z

selecting by scaletype and meter

← Older revision		Revision as of 20:04, 23 April 2020
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	== ~~selecting~~ by scaletype and meter ==		== Selecting by scaletype and meter ==

	Often when you do analysis on music, you need to select music with common forms or features (such as input for David Cope's sort of analysis and music generation). Here is an example of selecting files by a particular meter and scaletype:		Often when you do analysis on music, you need to select music with common forms or features (such as input for David Cope's sort of analysis and music generation). Here is an example of selecting files by a particular meter and scaletype:
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	scaletype *.krn		scaletype *.krn
	grep -h '^\M3/4' .krn \| sortcount		grep -h '^\M3/4' .krn \| sortcount


	== Beat tool ==		== Beat tool ==

2020-04-23T19:37:40Z

scaletype tool

← Older revision		Revision as of 19:37, 23 April 2020
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	* Exercise: in the `toofew` how many pitch classes are there? (0, 1, 2, 3, or 4).		* Exercise: in the `toofew` how many pitch classes are there? (0, 1, 2, 3, or 4).

			* Compare these results to the han dataset.

	== Meter ==		== Meter ==

2020-04-23T19:37:07Z

Downloading a repertory from the collection

← Older revision		Revision as of 19:37, 23 April 2020
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	This should download 1701 song files:		This should download 1701 song files:
	$ ls *.krn \| wc -l		ls *.krn \| wc -l
	1701		1701

			Also download one of the Chinese repertories for comparison:
			mkdir ../han
			cd ../han
			humsplit h://essen/asia/china/han

			There should be 1223 songs in this dataset:
			ls *.krn \| wc -l
			1223

	== scaletype tool ==		== scaletype tool ==

2019-04-09T21:14:13Z

Downloading a repertory from the collection

← Older revision		Revision as of 21:14, 9 April 2019
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	This should download 1701 song files:		This should download 1701 song files:
	$ wc -l *.krn		$ ls *.krn \| wc -l
	1701		1701

2019-04-09T20:26:45Z

mint

← Older revision		Revision as of 20:26, 9 April 2019
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	cat deut*.krn \| kern -x \| mint \| grep -v = \| context -n 2 \| ridx -H \| grep -v r \| sortcount -v -p --min 0.5 > index.html		cat deut*.krn \| kern -x \| mint \| grep -v = \| context -n 2 \| ridx -H \| grep -v r \| sortcount -v -p --min 0.5 > index.html

			* How to remove P1 (unison/repeated notes)?


	== Next lab ==		== Next lab ==

2019-04-09T20:23:32Z

Next lab

← Older revision		Revision as of 20:23, 9 April 2019
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	* Exercise: Notice that beat 1.5 is fairly rare in these 3/4 songs. How does this compare to the songs in 4/4?		* Exercise: Notice that beat 1.5 is fairly rare in these 3/4 songs. How does this compare to the songs in 4/4?

			== mint ==

			"Melodic Interval" extraction

			Try:

			cat deut*.krn \| kern -x \| mint \| ridx -H \| grep -v r \| sortcount -v --sort interval -p --min 0.5 > analysis.html

			* Meaning of each command?

			cat deut*.krn \| kern -x \| mint \| grep -v = \| context -n 2 \| ridx -H \| grep -v r \| sortcount -v -p --min 0.5 > index.html




	== Next lab ==		== Next lab ==

2018-06-30T01:15:19Z

Next lab

← Older revision		Revision as of 01:15, 30 June 2018
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	Next, you can view [[Humdrum Lab 3]] which demonstrates searching for musical features in the Essen Folksong Collection.		Next, you can view [[Humdrum Lab 3]] which demonstrates searching for musical features in the Essen Folksong Collection.


			{{humdrum_labs}}

2018-04-21T08:06:45Z

Next lab

← Older revision		Revision as of 08:06, 21 April 2018
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	== Next lab ==		== Next lab ==

	Next, you can view [[Humdrum Lab 3]] which searching for musical features.		Next, you can view [[Humdrum Lab 3]] which demonstrates searching for musical features in the Essen Folksong Collection.

2018-04-21T08:06:15Z

Context

← Older revision		Revision as of 08:06, 21 April 2018
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	Here is an example of extracting a context of 2 adjacent notes:		Here is an example of extracting a context of 2 adjacent notes:

	$ beat *.krn ~~-A1~~ \| context -n 2 \| ridx -H \| grep -v = \| sortcount \| head -n 20		$ beat *.krn \| context -n 2 \| ridx -H \| grep -v = \| sortcount \| head -n 20
	1026 2 3		1026 2 3
	991 1 2		991 1 2
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	Here is an example of how to extract all metric patterns in the songs:		Here is an example of how to extract all metric patterns in the songs:

	$ beat .krn ~~-A1~~ \| context -n 20 \| ridx -H \| grep ^1 \| grep -v '^1\.' \| sed 's/=.//' \| sortcount -p \| head -n 20		$ beat .krn \| context -n 20 \| ridx -H \| grep ^1 \| grep -v '^1\.' \| sed 's/=.//' \| sortcount -p \| head -n 20
	19.59 1 3		19.59 1 3
	15.86 1 2 3		15.86 1 2 3