Notator

Logic Pro X

A screenshot of Logic Pro X
Developer(s)	Apple Inc.
Stable release	10.3.2 / July 17, 2017; 3 months ago (2017-07-17)
Written in	C, C++, Objective-C
Operating system	macOS (10.11 and later)
Platform	x64 (as of Logic Pro 9.1)
Size	1.39 GB
Available in	English, Chinese, Japanese, French, German, Spanish
Type	MIDI sequencer and Digital Audio Workstation
License	Proprietary
Website	Mac App Store

Logic Pro is a digital audio workstation and MIDI sequencer software application for the macOS platform. It was originally created in the early 1990s as Notator Logic, or Logic, by German software developer C-Lab, later Emagic. It became an Apple product, eventually known as Logic Pro, after Apple bought Emagic in 2002. It is the 2nd most popular digital audio workstation (DAW) according to a survey conducted in 2015.

A consumer-level version based on the same interface and audio engine but with reduced features, called Logic Express, was also available at a reduced cost. Apple's GarageBand, another application using Logic’s audio engine, is bundled in iLife, a suite of software which comes included on any new Macintosh computer. On December 8, 2011, the boxed version of Logic Pro was discontinued, along with Logic Express, and Logic Pro is now only available through the Mac App Store.

Logic Pro provides software instruments, audio effects and recording facilities for music synthesis. It also supports Apple Loops – royalty-free professionally recorded instrument loops. Logic Pro and Express share many functions and the same interface. Logic Express is limited to two-channel stereo mixdown, while Logic Pro can handle multichannel surround sound. Both can handle up to 255 audio tracks, depending on system performance (CPU and hard disk throughput and seek time). Logic Pro can work with MIDI keyboards and control surfaces for input and processing, and for MIDI output. It features real-time scoring in musical notation, supporting guitar tablature, chord abbreviations and drum notation.