Although the Alesis ADAT HD24 lets you loop the playback of a single song (or a region therein), it doesn’t let you loop several songs in a row. The solution is conceptually simple, if a bit cumbersome in practice: merge (i.e., concatenate) the two songs into new song, and loop that one.

Here’s how to concatenate two songs. We’ll assume that Drive1 contains “Song1″ and “Song2″, and that Drive2 has enough free space for one copy of Song1 and two copies of Song2.

1. Select Drive1 and copy Song1 and Song2 to Drive2. [see p. 54 in the manual]
2. Select Drive2. (From here on we’ll only need Drive2)
3. Select song “Song1″ and rename it to “Merge” [p. 33]
4. Select song “Song2″ and write-protect it
5. Set the Edit Start and Edit End points to each end of “Song2″ [p. 56]
6. Select a track (or group of tracks) to copy.
7. Copy
8. Select song “Merge”
9. Set Edit Start to the end of “Merge”.
10. Select the track(s) to paste (must be the same as the track(s) you selected in step 6!).
11. Paste

(If your songs are long, your HD24’s copy/paste buffer may not be large enough to copy and paste all your tracks at once, and you’ll get an error message. If this occurs, try copying/pasting fewer tracks at once.)

You’ve now appended a copy of one (or more) track(s) from “Song2″ to the corresponding track(s) from “Song1″. If your songs contain additional tracks, repeat the following steps as needed:

1. Select song “Song2″
2. Select the next track (or group of tracks) to copy
3. Copy
4. Select song “Merge”
5. Select the track(s) to paste (must be the same as the track(s) you selected in step 2!).
6. Paste

Now you can create a loop for your merged song, as described on pp. 45-46 of the manual. And don’t forget to write-protect your merged song!