* Track titles marked with an asterisk were first released or featured on an album released the previous year or, in some cases, two years earlier.

Artist names in bold type indicates that this is their first appearance, chronologically, on an Ultramix.

Red text indicates author's favourite sections

Blue star and number indicates position on base58's top 100 favourite tracks for that year.

 Part is under reconstruction.

 Part was recently reconstructed (with additonal tracks, improved editing and/or higher bitrate quality.

Green text indicates the artist re-appears on later Ultramixes.

To download a high-quality version of this mix email base58 at gmail.com

Ultramix 90 parts 1-9 created and published in January 2005. Some alterations have been made to sections of the mix since then and further improvements to the encoded quality of tracks, smoothness of some transitions and additional material will be added in the future.

Statistics
This was the second Ultramix to be produced chronologically after Ultramix/Poptimix 04.

In total 34 tracks featured on Ultramix 90 were originally released the previous year if not earlier.