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

[Evita]

Hi Carey, I'm an intermediate level guitarist. I started from classical guitar, but as I love jazz and know quite about it, I recently decided to approach jazz standards playing and singing. Maybe I'm not the perfect person to count on for a feedback but I find this tool incredibly useful!!

It's great to have a chart like this to understand the structure of the song, being aware of the possible variations such as modal interchanges, diminished chords or secondary dominants. The use of colors makes it very easy to follow the harmony.
The instructions are clear and precise.
I wrote a couple of jazz style songs (one for voice and piano, and one for voice and guitar). The melody came out so easily but I'm stucked with the harmonization.... I guess visualizing a lot of standards I could definitely get inspired. So thank you for your work!!

Eva