Ableton has announced a freebie for Live users:

We invite you to enhance your Ableton Live experience with a free download of Retro Synths by Puremagnetik, our most popular Partner Instrument. Retro Synths represents the best of Puremagnetik’s meticulously multi-sampled vintage synthesizer packs, including samples from classics such as the Korg MS-20, Roland D-50 and more. With intelligently selected macros, Retro Synths is immediately playable in Live.

Retro Synths — a $99 value — is now free for all Ableton Live 8 and Suite 8 users. It is also included with any upgrade to or new purchase of Ableton Live 8 or Suite 8 until October 31, 2011.

Get the details at Ableton’s site.