Work Samples

Selections from Colleen’s musical activities

Orkestar Bez Ime

Violinist/Singer : OBI on Minnesota Original (MNO), 2013


Violinist/Composer : OBI, “Julie,” Unveiled: Live At The Celtic Junction, DD 2014


Violinist : Szászka, Harmony, CD 2011

 Ethnic Dance Theatre

Solo/lead violinist : Select EDT performances

Other Projects

Soloist : Dragobete Concert with Cununa Transilvan, Cluj-Napoca, Romania, 2016

Select Recording Credits

Solo violin : Nosferatu (2017)Keith Spears, composer; Reid Kruger, studio engineer


Backing vocals : KAL, “Liljano,” Romologija, CD 2014


String section (viola) : Jeremy Messersmith, Heart Murmurs, 2014


String section (viola) : Davis Bain, “Love This Strong,” Love in Blue, LP 2015


String section (violin): The Brighton, “Safe Harbor,” Single 2010



The Ciprian Porumbescu Choir of MN & Orkestar Bez Ime, Ca Noi Nu Colinde Nime’: Romanian Christmas Carols, arranged and produced by Colleen Bertsch, CD & DD 2017
Orkestar Bez Ime, Live at Celtic Junction, DD 2014
Szászka, Harmony, CD 2011
Orkestar Bez Ime, Mahala Drive, CD 2010
Orkestar Bez Ime, Nice Driveway, Volume Three: Rogarian Baba-que, CD 2007
Orkestar Bez Ime, Nice Driveway, Volume Two: Lake Aquanyet Days!, CD 2006
Orkestar Bez Ime, Nice Driveway, Volume One: Cheers from the Land of the Freeze, CD 2005