A:Answer Yes, but only if you have an external hard drive connected to it at all times to save all of your audio samples and projects, or else your memory will go very quickly.
Mac Air should be able to run logic, ableton, FL studio easily with a external hard drive, but it might crash if you have alot of layers, automation, and plug ins.
A Macbook Pro would crash way less and a iMac would barely if at all crash with a heavy amount of layers/automation/plugins.