Advert for the Slow Dazzle Tour from Melody Maker magazine dated April 19th, 1975 which lists concert dates as well as promotes the new LP.

The following from Chris Spedding's website Biography at http://www.chrisspedding.com/bio/bio5.htm

April - John Cale released Slow Dazzle in March and kicked off the tour with Spedding, Pat Donaldson on bass, Timi Donald on drums and Chris Thomas on keyboard this month.
They went around Europe for a month.

May 1 - John Cale - John Peel Session (aired on May 9)
They played, Taking It All Away, Darling I need You, You Know More What I Know and Fear.
Taking It All Away, Darling I need You and You Know More What I Know are contained on his bootleg Lou Reed/John Cake - Take Off Your Mask and Fear is on Roxy Music - When You Were Young

3 J.Cale - Essesx University, Colchester (British tour started)
6 J.Cale - City Hall, Glasgow
7 J.Cale - Lancaster University
9 J.Cale - Sussex University, Brighton
10 J.Cale - Southampton University
11 J.Cale - Drury Lane Theatre, London (with Eno)
13 J.Cale - Cambridge University
16 J.Cale - St.Andrews University
17 J.Cale - City Hall, New Castle
18 J.Cale - Repertory Theatre, Birmingham

Slow Dazzle tour ended up.