DrumTrackPattern

 1 DRUM TRACK PATTERN DATA
+-----------+---------------------+-------------------------+-----------------------------+
|  OFS      |      parameter      |  data(hex)              |         DESCRIPTION         |
+-----------+---------------------+-------------------------+-----------------------------+
|   00      | PATTERN NAME (Head) |                         |                             |
|    :      |        :            |  20~~7F                 |                             |
|   23      | PATTERN NAME (Tail) |                         |                             |
+-----------+---------------------+-------------------------+-----------------------------+
|   24      | Length              |  01~~63                 |                             |
+-----------+---------------------+-------------------------+-----------------------------+
|   25      | Meter               |  10~~3F                 |                             |
+-----------+---------------------+-------------------------+-----------------------------+
|   26      |                     |                         |                             |
|    :      | (Reserved)          |                         |                             |
|   27      |                     |                         |                             |
+-----------+---------------------+-------------------------+-----------------------------+
|   28      |                     |                         |                             |
|    :      | Event Address       |  0~~FFFFFFFF            |                             |
|   31      |                     |                         |                             |
+-----------+---------------------+-------------------------+-----------------------------+