Originally posted by jesuscandle
Can someone explain what midi-out is? Why would you need this feature?
Can't you just plug your mac into some speakers and play your song?
I just don't know anything about it...
thanks
todd
MIDI stands for Musical Instrument Digital Interface. It's a protocol for communicating between different pieces of music hardware.
What MIDI does, at its most basic level, is communicate information about what notes to play, and how long to play them, and other information such as tempo - as well as a lot of other data which I won't go into here.
Almost anything can have MIDI on it - computers running MIDI software; keyboards, MIDI guitar; sound modules; etc.
A MIDI Sequencer, for example, is software that records MIDI information (usually displayed as dots on a grid, like an old player piano roll).
For example, you play notes on your MIDI keyboard and they are translated into MIDI signals, carried by a MIDI cable to an interface box attached to your Mac, and software (like GarageBand) reads this information and records it to the track or instrument you've selected.
MIDI Output would be the reverse: MIDI information being played back from the computer to your keyboard to tell it to produce notes.
Popular sequencer apps include Apple's Emagic Logic, Mark of the Unicorn's Digital Performer, Cakewalk (for PCs,) and Steinberg Cubase.
This applies to GarageBand because while you can play
into it using MIDI, it doesn't
output MIDI notes.
People might want to do this to use it to control other (real) synths in addition to GarageBand's built-in instruments, or to transfer their songs to other music applications -- for example, if you have GarageBand at home but your recording studio has Logic, you could export the MIDI and audio tracks and import them into the other app. If you can't do this, it's a little bit limited, but still very useful.
But as you say, if you have a Mac and speakers, you're good to go.