colortriads filter

[Craig Sapp]

Hello **HUGers,

I added a fun filter called "colortriads" to VHV:

     https://doc.verovio.humdrum.org/filter/colortriads

It colors triadic sonorities according to the root, which is useful for visualizing the harmonic structure of chordal music such as Bach chorales:

     https://verovio.humdrum.org/?file=chorales/chor002.krn&filter=colortriads

Color map:

Adding the -r option to the filter will give functional colors:

Functional color map:

And a link to the functional colored version:

     https://verovio.humdrum.org/?file=chorales/chor002.krn&filter=colortriads%20-r

You can press shift-leftarrow and shift-rightarrow to browse through the chorales or click on the repertory navigation buttons at the top left corner of the VHV window.

The colortriads filter does not yet work well with music containing chords or subspines, and in any case, it will only work well with music that is not rhythmically elaborated, so Bach chorales are ideal.

User signifiers are added to the notes for each triad type, and these could be useful for further statistical analysis of the triads.

-=+Craig