I choose Input 1 + 2 assuming it matches the Audio MIDI Setup description of this CASIO keyboard. There is ambiguity before proceeding: Input is listed as 'No Input', 'Input 1', 'Input 2', 'Input 1 + 2'.
![using a casio ctk 710 as a midi controller fl studio using a casio ctk 710 as a midi controller fl studio](https://i.ytimg.com/vi/UPsTFWaM85M/maxresdefault.jpg)
![using a casio ctk 710 as a midi controller fl studio using a casio ctk 710 as a midi controller fl studio](https://b93cd8a448dc3eb0c358-a784f0287de17aca81e7ecc053e60785.ssl.cf2.rackcdn.com/2080/images/Oxygen25_Ortho_web_ABT.jpg)
There is nothing in Apple's documentation about actually using the MIDI input keyboard in the software once it's connected (at least after >30 minutes of looking for help).
#USING A CASIO CTK 710 AS A MIDI CONTROLLER FL STUDIO DRIVER#
By all appearances, it appears the driver is already installed automatically, a plug-and-play matter, and that I should just hit 'record' and start playing, since: I cannot figure out why my MIDI keyboard is not working, and Apple's Help menus and software are useless in identifying the problem. How do I use a CASIO CTK-541 keyboard to input notes into Garageband 10.0.3 within OS X Yosemite 10.10.2?