What is Jumble?
Simply put, Jumble is a tool for finding tracks that mix well with other tracks. Additionally, Jumble provides meaningful attributes of a track, such as BPM, key, and many other audio features. Although Jumble is geared towards DJs and producers, it can be used for an array of purposes, such as making playlists of songs with similar BPMs for workouts. To get started, just search for a track or artist in the search bar above.
How does it work?
Jumble uses Spotify's Web API to provide a list of harmonic track recommendations based on factors such as BPM, key, and genre. These recommendations are then sorted and colored based on their mixability. A key to these color mappings has been provided below.
| BPM | Key | |
|---|---|---|
| Green | Difference of 0 - 3 BPM | The same key as the original or it's relative key |
| Light Green | Difference of 3 - 6 BPM | Adjacent or diagonal to the original key |
If you are at all confused by the descriptions above it is highly recommended you read this informative article, What is Harmonic Mixing, provided by musician/developer Nikhil Rajavasireddy. This article explains everything you need to know about harmonic mixing, the circle of fifths, and how they relate to a track's mixability.
What do the numbers mean?
Each track’s recommendations page contains a graph to help visualize certain track audio features that may or may not be unfamiliar. Here you can find some brief explanations of what these features mean, and their associated scale.
| Feature | Description |
|---|---|
| Acousticness | A measure of how acoustic a track might be. Tracks with high acousticness consist of mostly natural acoustic sounds (i.e. acoustic guitar, piano, orchestra). Values range from 0.0 - 1.0. |
| Danceability | A measure of how suitable a track is for dancing based on a combination of musical elements including tempo, rhythm stability, beat strength, and overall regularity. Values range from 0.0 - 1.0. |
| Energy | A measure of intensity and activity. Tracks with high energy generally feel fast, loud, and noisy. Values range from 0.0 - 1.0. |
| Mood | Mood, also known as valence, is a measure of a tracks musical positiveness. Tracks with a higher mood sound more happy, cheerful, eurphoric; tracks with a lower mood sound more sad, depressed, angry. Values range from 0.0 - 1.0. |
| Loudness | A measure of how loud a track is in decibels (dB). Values range from -60 to 0 dB with most tracks at around -14 dB. |