ill make this simpleer then my last one. Ok so basically i know all the chords, and basic ska theory, but here are the things i don't know. (a) the amp/effects settings (b) when i should mute the chord and when i shouldn't.

Yes don't give me that crap that i should play a-ha's version. Then the trumpets and trombones would be useless. Ive never played ska either, so if someone can give me the scratch pattern to this it would be appreciated