Korg Trinity Plus Lost sounds

[michelkeijzers]

if the new combi is using new sounds (programs) then do the old (sounds) programs get overwritten

Only if new Programs are loaded at the same time as loading the new Combis.

It's very important to note that Combis do not contain any Program data, they only contain references (bookmarks) to Program positions.

Consequently, if you load new Combis but don't load the relevant Programs to go with them, and the existing Programs aren't the ones that were there when you saved the Combis, then the new Combis will be referencing incorrect (old/former) Programs... Thus the Combis will sound very different as they're effectively using different Programs to the ones you intended.

Ideally, when you save Combis you should also save the Programs that go with them, particularly if you're chopping and changing things a lot by moving, overwriting Programs etc.

When you use PCG Tools, and you copy the combis, automatically PCG Tools will copy the programs used by those combis in an internal storage. When pasting it to the target PCG file (the one you probably created with your synth), the combis are pasted (if not already existing). The programs which are already in the target PCG file will be used and combis using the already existing programs will be automatically connected, programs which are not existing yet, you can paste and also be connected to the pasted combis. It does not matter in which order you paste the programs or combis.