Denny DeMarchi is a Canadian multi-instrumental musician who is talented as a keyboardist and prolific singer-songwriter. He is also a guitarist, backing vocalist, audio engineer and record producer. DeMarchi is notable as a rock concert tour musician for the well-known Irish band The Cranberries during their reunion tour (2009–11). He is equally notable for performing with Dolores O'Riordan on both TV and radio internationally as her keyboardist and guitarist during her Solo world tour in 2007. DeMarchi is also known for his role as the keyboardist who played the signature keyboard notes for the popular 1990 No. 1 Billboard hit song More Than Words Can Say by the band Alias.