Made for PXTUNES 10th Anniversary: THE FUTURE OF PXTONE:
https://pxtunes.bandcamp.com/album/pxtunes-10th-anniversary-the-future-of-pxtone

Featuring some voices from cobVOICE DELUXE:
https://cob.im/cobvoice-dx/

(intro vaguely inspired by https://www.youtube.com/watch?v=NbyLzfmtMns&t=237s)

tempo data so I don't lose it:
```
let tempo_points = [
(0.0, 120.0),

(15.0 + 4./7., 120.0),
(15.0 + 6.5/7., 100.0),
(16.0, 80.0),
(16.0 + 0.1/7., 120.0),

(21.0 + 4./7., 120.0),
(21.0 + 5./7., 110.0),
(21.0 + 6./7., 90.0),
(22.0, 120.0),

(41.0 + 4./7., 120.0),
(41.0 + 6.5/7., 100.0),
(42.0, 60.0),
(42.0 + 0.1/7., 120.0),

(44.0, 120.0),
(44.0 + 1./7., 110.0),
(44.0 + 1.5/7., 100.0),
(44.0 + 2./7., 60.0),
(44.0 + 2.4/7., 110.0),
(45.0 + 1./7., 120.0),

(47.0 + 4./7., 120.0),
(47.0 + 5./7., 100.0),
(47.0 + 6./7., 80.0),
(48.0, 120.0),

(51.0 + 4./7., 120.0),
(52.0 - 0.1/7., 20.0),
(52.0, 99.6),

(59.0, 99.6),
(59.0 + 0.1/7., 80.4),
];
```