Cathedral is an on-going interactive work of music and art designed specifically for the Web. Media artist Nora Farrell and composer William Duckworth created it.

The Cathedral Project has three primary components

-a Website, which features a variety of interactive musical, artistic, and text-based experiences, all focused on 5 mystical moments in time.

-the PitchWeb, which is one of the virtual instruments designed for the site to allow listeners to play together online.

-The Cathedral Band, a group of improvising musicians who gives periodic live performances from venues around the world, during which global PitchWeb players frequently sit in.