Grøndahl began playing in local bands, playing the local bar scene on Saratoga's Broadway strip. Grøndahl began jamming with Jeff Buckley in Spring of 1993, and he soon joined forces with Buckley. Grøndahl became an integral part of Buckley's live sound, and wrote the songs, "Dream Brother", "Vancouver", "Tongue" and "Edna Frau" which Buckley would sing. Before and after Buckley's death, he played in several bands including
Elysian Fields, Beth Orton and the Greenlandic singer Angu. Grøndahl also briefly worked with American songwriter
Elliott Smith during recording for Smith’s album
XO, however did not contribute studio work due to mourning Jeff Buckley’s passing. As of 2020 he is living in Denmark with his daughter, recording and performing with his group. ==Musicianship and equipment==