How do I use my keyboard as a piano in GarageBand?

To play a Software Instrument using Musical Typing:**Choose Window > Musical Typing. ... **Select the Software Instrument track you want to play.**Play the Software Instrument using the keys on your computer keyboard. read more

GarageBand works well with MIDI instruments, but if you don't have a MIDI keyboard, you can turn your Mac keyboard into a virtual musical instrument. Launch GarageBand, located in the /Applications folder. read more

Once you’ve connected your keyboard, you can use it to play GarageBand's instruments. To do that, launch GarageBand, and from the project chooser window select Keyboard Collection and click Choose. The GarageBand window will open and display a long list of keyboard instruments in the track headers. read more

Use Your Mac as an Instrument in GarageBand in iLife '11 - dummies. GarageBand includes an onscreen music keyboard. So within iLife '11 you can record music on your Mac using the Software Instrument: Just choose Window→Keyboard. To use the keyboard, click the piano keys. Click the keys (top) or type on the Mac keyboard (bottom). read more