beat manpage

COMMAND

beat -- Analyze rhythmic information of **kern data.

beat [-a] [-b rhythm] [-z] [-d | -s] [input] [> output]

-a		Append analysis data to input lines.
-b rhythm		Specify the beat rhythm. For example use -b 2 for cut-time, and -b 4. for compound meters such as 6/8.
-d		Analyze the duration of each line rather than the beat position.
-s		Sum the duration of music in each measure.
-z		Start counting beats from 0 rather than 1.

Example usages of the beat program are available on the beat examples page.

Input arguments or piped data which are expected to be Humdrum files can also be web addresses. For example, if a program can process files like this:

       program file.krn

It can also read the data over the web:

       program http://www.some-computer.com/some-directory/file.krn

Piped data works in a somewhat similar manner:

       cat file.krn | program

is 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.krn

will download the URL:

http://kern.humdrum.org/cgi-bin/ksdata?file=bwv1046a.krn&l=/brandenburg&format=kern
Which is found in the 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

The compiled beat program can be downloaded for the following platforms:
• Linux (i386 processors) statically compiled on 24 Jun 2009.
• Windows compiled on 2 May 2009.
• Mac OS X/i386 compiled on 10 Sep 2009.
• Mac OS X/PowerPC (version 10.2 and higher) compiled on 13 May 2009.

The source code for the program was last modified on 26 May 2002. Click here to go to the full source-code download page.