Recs.
Updated
Logic Pro X is a DAW/MIDI sequencer for Mac OS. It has been in the works for a very long time, and is known for being highly refined and pretty easy to pick up for beginners.
SpecsUpdate
Pros
Pro Easy to learn, makes writing easy, and keeps technical in the background
It is easy, intuitive, and easy-to-implement.
Pro Free corresponding iPad app
In order to allow more control, the Logic Pro X DAW has added a free iPad app called Logic Remote.
Logic Remote is available in several different views, and is capable of MIDI input and parameter adjustment. It comes with a full library and browser. Navigation is easy as well via the navigation bar along the top of the screen.
Many interesting views are available, such as chord strips. This view allows users to play a series of preset chords that are already in the right key. Gestures are supported with this app, so loop speed and other properties can quickly be adjusted.
This app connects to Logic through WiFi, so the app and program should be running on the same network.
Pro Incorporating iOS devices, accessing Apps/Synths/Effects
A totally overlooked feature....
The Setup is as Easy as Pie.
Create an aggregate audio setup and midi device incorporating your iOS devices and wham bam....Instruments / Audio / FX all accessible within logic.,
An AU... An Audio I/O.. Brilliant.
Pro Used by celebrities
This includes: Prodigy - Invaders Must Die (everything except guitars), John Powell - How to train your dragon, other works, and Tycho (until 2011 when he switched to Reaper to finish his album). Though , Still to this day uses Logic for composing.
Lets also not forget Boris Blank that in essence is Yello, and One of the pioneers of electronic based music.
Cons
Con Rarely updated
Since Apple purchased this software, the updates are rare and none. The latest update was less than great and has forced users to look elsewhere, especially the Pro community.