Jenna performs solo and with her band Berri, a three piece with leading creative musicians Matthew Jacobson and Derek Whyte where Jenna frequently loops and processes her voice, “a group that makes clear the difference between a jazz singer and a singer of jazz songs" (The Irish Times).

In performance Jenna improvises using both her natural voice and live processing of her voice, this has developed a style of improvisation that intrinsically links the two, both feeding back and forth from each other. Her performances often incorporate reactive visuals that she builds as a platform to exhibit the voice as the instrument it is.

Jenna regularly collaborates with electronic musician Daniel Jacobson (Zoid), and is a member of guitarist Tommy Halferty's quartet Voices. She is the founding member of vocal ensemble Claritas, and lecturers on DCU's BA in Jazz and Contemporary Performance.