Adium soundset that is free, easy to use, and functional soundset made from a high-quality compositional experiment.
The sounds will activate for a variety of events, including connect and disconnect, contact sign off and sign on, error messages, new messages received, and file transfer requests and completions.
In the downloadable package, you'll find six different soundset variations: the original Rezso with bare themes on a solo xylophone, Rezso Symphonic with thicker orchestral textures, Rezso Synths with various synthesizer sounds, Rezso Rock with guitars and drums, Rezso Africa with African percussion, and Rezso Platform using a synthesized bell tone similar to those found in public transportation stations.
It's worth noting that Rezso is developed, provided, and licensed under the terms of the Creative Commons Attribution-Share Alike 3.0 License, so you can feel good about using it without any guilt. Overall, if you're looking to spice up your Adium notification sounds, Rezso is definitely worth checking out.
Version 5.0: N/A