The button labeled 'Music' will record for the duration of your Flipnote, but the maximum recording time is one minute. The buttons labeled 'Sound 1, Sound 2, Sound 3' can each record 2 seconds.
Pressing the L-button lets you load sounds recorded with the Nintendo DSi Sound app from system memory. In case something is already recorded to "Music", you can record overdubs to it.
- ↑ Create a Flipnote at speed 1 with more than 30 pages. Music recording will always stop at page 30, which equals 1 minute.