We've already covered some music-making apps for the iPhone and iPad, but if you're interested in taking things a step further, why not consider adding some hardware? We'll take a look at three hardware keyboard attachments that will take making music on your iOS device to the next level.
Akai SynthStation49 for iPad - The SynthStation49 is the big brother of the SynthStation25 for the iPhone and can be used with the iPad or iPad 2. It features an adjustable angled dock that charges your iPad while you play and works seamlessly with Akai's SynthStation software. The SynthStation49 allows direct MIDI performance recording onto your iPad and is also CoreMIDI compatible, making it compatible with a number of music apps in the iTunes App Store. It also features a modulation wheel and velocity sensitive drum pads and keys.
Piano Apprentice - This keyboard can be used with the iPad, iPhone and iPod Touch. The goal of Piano Apprentice is to teach you how to play the piano using software on your device and following along with the blinking lights. The software makes it easy to follow along since the screen is so close to the actual keys and you don't have to continually look up to the screen. The Piano Apprentice app also teaches you musical notations and hand placement via videos.
Akai SynthStation25 for iPhone and iPod Touch - The SynthStation25 is a travel size version of the SynthStation49 (just small enough to take along with you to make some songs during a train commute or plane ride). The keyboard synth works with Akai's own software, but also works with other popular apps like Nanoloop and Music Studio. SynthStation can also be connected to your computer through mini USB and can be used as an actual MIDI keyboard.