Jennie performed under the name of Red Jen a few years back. I was lucky enough to buy her "solo" album which I later found out from Jennie should never have been made available via the website I bought it from. 

Red Jen's solo album (circa 1997)

Sunny River Drive
Paradise
Boo Hoo
No Longer
East West Highway
Beautiful World (Big 5 track)
Bad Kharma (Big 5 track)
Girl
I've Been There
Empty Apartment
Strong In Love
No Better Time
I Question Why?

Red Jen - One More Kiss (1999)
Released on a 12" from bebop records (unbeknownst to Jennie)

Red Jen - Strike 2000
Jennie's anthem song for the Women's Global Strike held on 8th March 2000. Lyrics written as a collective by Redjen & International Wages for Housework Campaign. Music and production by Telford Bailey.  Vocal arrangement & production by Jennie.

Red Treasure - unreleased tracks
Karmic Vibe
Spanish Sun
Silent Secret
Trippin
Played Those Games Before (You think you're so fantastic)
Spanish Experiment

Jennie Matthias (not sure if this is a solo song or if part of a band) 1989 - 'Another Night', lyrics and melody by Jennie, music by Manuel Cimadecilla

Red Treasure - Oh No, Don’t Tell My Dad (I’m Sitting On A Gonad)
Jennie recorded this jingle for Garry Bushell’s podcast. In case you’re wondering, Garry Bushell is a TV critic and has a band called The Gonads.