Professional music program: Apple has released Logic Pro X Mac and Free iPad app.

Henceforth since yesterday, Apple Logic Pro X brings a new interface, added drum production, keyboard and synths and much
more. Available for $199.99 in the Mac App Store , it includes now:

Powerful New Interface

• Consolidate and control multiple tracks or create rich, layered instruments with Track Stacks
• Smart Controls allow you to manipulate multiple plug-ins and parameters with a single move
• An enhanced Mixer lets you move, copy, and bypass channel inserts more efficiently
• Quickly re-order song sections and try new ideas using Arrangement Markers
• Autosave keeps your work safe and sound
• See and edit more of your performances in the Score editor with a new wrapped view

Professional Music Production

• Fix out-of-tune vocals and change the melodies of recorded audio with Flex Pitch
• Manipulate the timing and tempo of any recording with ease using Flex Time
• Record and seamlessly punch in and out of one or multiple tracks
• Keep takes organized with take folders and build comps quickly with Quick Swipe Comping
• Record automation for any channel strip or plug-in parameter on the fly
• Create and mix music from anywhere in the room using Logic Remote on iPad
• 64-bit architecture supports large projects containing hundreds of tracks and sampled instruments

Drum Production

• Create drum tracks that play with your song using Drummer, a virtual session player
• Choose among 15 distinct drummers that can take your direction and perform millions of unique grooves
• Build your own kit with Drum Kit Designer using a diverse collection of deeply sampled, professionally mixed snares, toms, kicks, hi-hats, and cymbals
• Produce electronic drum sequences with Ultrabeat

Keyboards and Synths

• Instantly turn a simple chord into a rich performance with the Arpeggiator
• Transform simple ideas into elaborate performances using nine MIDI plug-ins
• Create classic ’70s- and ’80s-style synthesizer tracks using Retro Synth
• Play faithful models of vintage keyboards with Vintage B3, Vintage Electric Piano, and Vintage Clav
• Get inspired by a collection of synths that provide analog, wavetable, FM, and physical modeling synthesis
• Play or create a wide variety of rich sampled instruments with the EXS24 Sampler

Guitar and Bass Gear

• Build your own guitar or bass rig with Amp Designer using vintage and modern amps, cabinets, and mics
• Design a custom Pedalboard from a collection of delay, distortion, and modulation stompboxes
• Access the Tuner with just a click to quickly get in tune

Creative and Production Effects

• Play your sounds through realistic acoustic spaces using Space Designer convolution reverb
• Use a range of multi-tap, vintage tape, and stereo delays
• Add movement to your tracks with a variety of modulation effects
• Get the perfect mix with a variety of EQs, dynamics, and other mixing tools
• Put the finishing touch on your project using a collection of mastering plug-ins

Sound Library

• Over 1500 instrument and effect Patches
• More than 800 sampled instruments
• 30 urban and electronic drum machine Patches
• 3600 Apple Loops in modern urban and electronic genres

Compatibility

• Expand your instrument and effects library with third-party Audio Units-compatible plug-ins
• Import and export XML to support Final Cut Pro X workflows
• Export and share your songs directly to SoundCloud
• Open projects from Logic 5 or later

Logic Pro X System Requirements are:

• 4GB of RAM
• Display with 1280-by-768 resolution or higher
• OS X v10.8.4 or later
• Requires 64-bit Audio Units plug-ins
• Minimum 5GB of disk space. 35GB of optional content available via in-app download

Regarding a companion app for the iPad, Called Logic Remote, available for free here!, it offers:

Play Logic Instruments

• Play any Logic instrument using a familiar piano keyboard or guitar fretboard
• Tap out beats on drum pads or a drum kit
• Use the scale mode to limit notes to fit the key of your song
• Tap and strum entire chords using Chord Strip view
• Make simple or dramatic changes to your sounds with Smart Controls 
• Add the Arpeggiator plug-in to any instrument

Navigate Logic Projects

• Operate basic transport controls like start, stop, record, and cycle 
• Swipe the LCD or bar ruler to navigate to any location
• Select and jump to any Logic project marker
• Control recordings on your Mac from another room
• Browse the Sound Library and remotely change Patches
• Enable Smart Help and hover over interface elements on your Mac to display documentation on your iPad
• Remotely trigger Logic key commands with customizable buttons 

Mix Your Logic Sessions

• Use Multi-Touch gestures to adjust Mixer volume, pan, solo, and mute controls
• Swipe to scroll or jump in banks to navigate through Mixer faders
• Use the level meter strip to monitor levels and identify clipping
• Enable and change automation modes for each fader