- data format: track# / start / stop / name
- no overlap
- data size: 5 to 10 tracks, 100 to 1000 entries each

data sample:

1 0 5 foo
2 3 8 bar
1 5 10 baz
2 0 3 quux
2 9 12 zob

plot sample:

   0  1  2  3  4  5  6  7  8  9 10 11 12
   +--------------+--------------+
 1 |     foo      |     baz      |
   +--------+-----+--------+--+--+-----+
 2 |  quux  |     bar      |  |   zob  |
   +--------+--------------+  +--------+