Time Tone Passages, by Norwegian artist Maia Urstad, was commissioned as both a 40 channel site specific sound installation in Bonn, Germany, and as radio broadcast for Deutschland Radio. To make the piece, Urstad immersed in the archives of the “Deutsche Welle” radio programs that have been broadcast in over 40 languages since 1953 into the present Time Tone Passages is a composition made out of this archival material, namely the sound of many languages, voices and broadcast-specific sounds.
- Introduced by Wave Farm Radio Artist Fellow 2019/2020, Karen Werner.

The Wave Farm Broadcast Radio Art Archive is an online resource and broadcast series on Wave Farm’s WGXC 90.7-FM, which is syndicated to stations across the country through The Radio Art Hour. It aims to identify, coalesce, and celebrate historical and contemporary international radio artworks created specifically for terrestrial AM/FM/Shortwave broadcast, whether it be via commercial, public, community, or pirate transmission. The archive is a product of Wave Farm's Radio Artist Fellowship.

Radio artists explore broadcast radio space through a richly polyphonous mix of practices, including poetic resuscitations of conventional radio drama, documentary, interview and news formats; found and field sound compositions reframed by broadcast; performative inhabitations/embodiments of radio’s inherent qualities, such as entropy, anonymity and interference; playful celebrations/subversions of the complex relationship between senders and receivers, and the potential feedback loops between hosts and layers of audience, from in-studio to listeners at home to callers-in; use of radio space to bridge widely dispersed voices (be they living or dead), subjects, environments and communities, or to migrate through them in ways that would not be possible in real time and space; electroacoustic compositions with sounds primarily derived from gathering, generating and remixing radiophonic sources. Note: Wave Farm continues to expand this definition of radio art through engagement with contemporary practices including those revealed by Wave Farm Artists-in-residence, and the Radio Art Fellowship program.