Jazz harmony visualizer

[Carey]

Hi all,

To better understand chord progressions of standards, I've built an online interactive jazz harmony visualization tool.

The idea is that at a glance, I wanted to understand where all the chords for the main tonal center of the song are, any modulations I'll need to prepare for, and where momentary changes in harmony such as secondary dominants, model interchange chords, diminished sevenths might be in the song.

The tool has a database of 2600 chord progressions, with a smart selection field at the top right. Default display is in Roman Numeral notation, but can be switched to chord names, and can be transposed to any other key. As not all songs are 32 bars with 8 bars per section, the tool also provides an interactive way to adjust the layout. The URL is

JazzVis — Harmony Visualizer

Instructions on how to use the service is available below the fold. It may not be perfect for all songs, so questions... feedback? Welcome!!

Carey

PS, more info about the objectives of the tool can be found in this paper:

https://openaccess.city.ac.uk/id/epr...ady%20Copy.pdf