Here's some info thus far about Sid Arthur:
Vienna started work on the music for this project back in early 2008, when she attended the first invitation only reading of the book by Tanya Schaffer.
http://playwrightsfoundation.blogspot.com/2008_02_01_archive.html
A year later, they took it semipublic with a rehearsal of the full work with music by invitation only and a public one time run through with music the following day.
http://www.batw.org/news/member-news/tanya-schaffers-musical-sid-arthur-offering-previews-feb-7-8/
Tanya posted some live recordings on her website from the February 8 performance. "Bois Riche", "You've Got a Glow", "Rope Burn", "Temptations: Bread and Water", "Temptations: Come Back to Me", "Sleep/Hundred Thousand Lifetimes"
http://www.tanyashaffer.com/sidarthur.htm
Vienna and the cast in progress of Sid Arthur did "Debunk Nation" and "Monkeys in My Mind" at the San Francisco Theater Festival in July.
http://viennateng.com/forum/viewtopic.php?p=20808&sid=b74a5166f537b4d4b437d8e582cafbb6
Fred posted the following in the performances section indicating that Vienna may be performing songs from her new musical work at the Lucie Stern Theater in Palo Alto in August.
http://viennateng.com/forum/viewtopic.php?t=2962
Vienna did play two songs with some talented vocalist friends singing parts to "Dearest Mama Sid" and "Look to the Thought" from Sid Arthur at the Theatreworks Festival at the Lucie Stern Theater in Palo Alto.
http://viennateng.com/forum/viewtopic.php?t=3012
From August 2009 forward, Vienna has been hard at work in the fine art of revisioning. The story has changed multiple times. The music has as well. Even the title may have changed.
There is another script out there for another musical that at one point was rumored to have Vienna attached to it to write the music, but I don't recall the title or know if Vienna was just approached for it or actually committed to it. I know that the musical possibly known as Sid Arthur has been a major commitment for Vienna for the past couple of years and what I've heard of it so far has been pretty interesting.