Well, I've been gathering BPM statistics about my music collection, and here's what I have.
NOTE: "Vocaloid" refers to Nico Nico Douga music in general; the name "Vocaloid" is vestigial.
Overall
| Artist | BPM | ||
|---|---|---|---|
| Vocaloid | 2660 | Min. | 90.67 |
| 中島みゆき | 480 | 1st Qu. | 96.60 |
| aiko | 195 | Median | 101.33 |
| 平原綾香 | 138 | Mean | 104.52 |
| 大塚愛 | 113 | 3rd Qu. | 109.96 |
| 菅野よう子 | 80 | Max. | 184.57 |
| (Other) | 1205 | ||
These are some general statistics about my entire collection. The quartiles and so on are about overall BPM, not per-artist.
The following graphs show the frequencies of BPMs grouped into "buckets" of 5 BPM each. The second graph is a probability distribution of the BPMs, with the blue line representing a normal distribution and the red line representing a density distribution.
Major Artists
This is probably the most interesting plot: I took all artists in my collection who have at over ten tracks and created a boxplot comparing their BPMs:
More detail after the jump…
Vocaloid Statistics
| Stat | Value |
|---|---|
| Min. | 90.67 |
| 1st Qu. | 97.51 |
| Median | 104.40 |
| Mean | 107.50 |
| 3rd Qu. | 113.60 |
| Max. | 184.60 |
While I do have this category in the box plot above and among the histograms below, I also compiled some statistics about the "Vocaloid" part of my collection.
Per-Artist
For all of those artists, I did similar histagrams/density plots as I did for "Overall" above:
| Histogram | Density |
|---|---|
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| Aggregate Categories | |
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