pizz and also midi

[Aaron]

Hi all,

Looking at the manual, I don't see a pizz. and arco command. Is this
handeled by markup?

Also how do I specify midi options beside an initial instrument name?

I would like to add a patch change for pizz/arco as well as adding tempo
changes in the score.

I realize that lilypond isn't a midiprogram and the midi is just for
auditioning my score, but it would be nice to be able to do this in
either case.

Thanks
Aaron