Ableton Live is a digital audio workstation for macOS and Windows developed by the German company Ableton. In contrast to many other software sequencers, Ableton Live is designed to be an instrument for live performances as well as a tool for composing, recording, arranging, mixing, and mastering. It is also used by DJs, as it offers a suite of controls for beatmatching, crossfading, and other different effects used by turntablists, and was one of the first music applications to automatically beatmatch songs. Live is available directly from Ableton in three editions: Intro (with limited key features), Standard, and Suite. Ableton also make a fourth version, Lite, with similar limitations to Intro. It is only available bundled with a range of music production hardware, including MIDI controllers and audio interfaces.