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It is important to note that the MPC can load up to 8 plugin tracks per project. So if by chance you are nearing this number, coupled with multiple drum or keygroup programs loaded in your project - this could very well be causing the message to appear.
To help alleviate this, we recommend the following steps:
- Remove unused Plugin Tracks: Tap the pencil icon besides your plugin track and tap Delete Track.
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It's also a good idea to delete unused tracks and samples via Menu > Project:
- Delete: In the screen that appears, tap any unused samples to delete all unused samples from the project
- All Samples: Tap All Samples to delete all samples from the project (from all tracks, sequences, and audio or MIDI tracks), or tap Cancel to return to the previous screen.
- Purge: To delete samples from the project (to create more free RAM space for sampling time, audio recording, etc.), tap Purge.
Auditioning Sounds: Additionally, if you wish to audition samples, drum or keygroup programs before loading them into your project, you can do either of the following:
- Go to Menu > Sounds > Drum.
- Tap the headphone icon (top right corner)
- Once enabled, tap and hold on a cell’s play icon to audition the selected sound.
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You can also audition demo projects, samples, drum or keygroup programs types via Menu > Browser. Ensure that Auto is enabled via the Audition tab:
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Use the six filter buttons to show only specific types of files in the list below. Folders will still be shown in the list.
Tap the P/page icon to show project files only.
Tap the bars icon to show pattern files only.
Tap the four-squares icon to show kit files only. Tap the plug icon to show plugin preset files only.
Tap the waveform icon to show sample files only.
Tap the three-pages icon to show all file types.