Radium

This is an emergency release for 5.6.9, but it also includes hard drive recording in the sequencer:



This version was released earlier than planned, so hard drive recording in the sequencer has some limitations (which should all be fixed in the next release):

1. You can only record from the input connections of the seqtrack instrument, not from the main inputs of the program. (For now you have to manually connect a "System In" object to the seqtrack instrument.
2. You can only record stereo files.
3. There is no punch in and punch out yet.

Changes 5.6.9 -> 5.7.0:

• Sampler: Fix crash when sampler instrument is deleted.
• Internal: Some improvements to the memory validation system Prevent bugs such as the sampler instrument bug above from going into production again.
• Sequencer: Record audio (press the new "R" button in the seqtrack header).
• API: seqtrackIsRecording, setSeqtrackIsRecording