1990s Alias In the mid 80s, DeMarchi helped his brother
Steve and their good friend
Freddy Curci build the sound recording studio, Platinum Sound, out of the DeMarchi family basement where most of the songs on the
Alias album were written and recorded. He was also involved with some of the production and engineering work for that album. DeMarchi was the keyboardist and backing vocalist for the 1990 No. 1
Billboard hit song
More Than Words Can Say from the
ALIAS album. He also co-wrote the last song in the
Alias album, "Standing in the Darkness". DeMarchi played keyboard, bass and did some of the production and engineering work for the 1994
Freddy Curci ''Dreamer's Road'' album. He co-wrote and produced the song "Diamonds" in this album.
2007–2008 Musician for Dolores O'Riordan's Solo Albums and World Tour DeMarchi and his older brother
Steve are old friends of Don Burton,
Dolores O'Riordan's husband. On a visit to Burton and
O'Riordan's family home in Canada, DeMarchi played on
O'Riordan's piano, DeMarchi's talent on the piano impressed
O'Riordan so much that she decided to hire DeMarchi as her keyboardist for her solo project. DeMarchi was the keyboardist for
Dolores O'Riordan's solo albums
Are You Listening? and
No Baggage. In 2007 he also toured with
Dolores O'Riordan on her solo world tour. In May 2007, DeMarchi along with other band members, were featured with O'Riordan in live performances on the
Carson Daly Show,
The Tonight Show with
Jay Leno, True Music on
HDnet cable network TV, and on Heaven and Earth
BBC Manchester.
Dolores O'Riordan won a
European Border Breakers Award in 2008. DeMarchi supported
O'Riordan on keyboard and as backing vocalist at the award ceremony at Midem 2008, Cannes, France – 27 Jan 2008.
2009–2011 tour musician for the Cranberries DeMarchi toured with
the Cranberries as their keyboard/guitar player and backing vocalist on their world tour, performing at major concert venues across the United States; Canada; South America; Europe and Asia. DeMarchi's performance in the Cranberries concert at
Club Nokia in Los Angeles was mentioned in two separate L.A. Newspapers. ''
The Orange County Register's
Entertainment Section review of the Cranberries concert printed that "Demarchi triggered the swelling orchestration and provided welcome background support all evening by bolstering the sound and enriching vocals." Variety'' reported that "The Band, augmented by keyboardist-guitarist Denny DeMarchi from O'Riordan's recent solo disc
No Baggage, brings sufficient energy to the set, the influence of the Smiths quite prevalent; oddly enough, the more racket they created, the more cohesive they sounded." DeMarchi was the opening act for the Cranberries On 5 July 2010 in Rome at the Roma Rock Festival, one of the premier events on the European summer music festival scene. DeMarchi opened the show with 8 songs from his own
Rockizoid solo project. On 28 August 2009. DeMarchi accompanied
Dolores O'Riordan in a Live performance on
CBC Radio in Toronto Ontario Canada.
Dolores O'Riordan joined guest host Jesse Wente live in Studio Q to talk about her second solo album release,
No Baggage, and the reunion of the Cranberries with plans for a world tour in mid November 2009.
Dolores O'Riordan introduced DeMarchi on the radio show as her keyboarder. They performed the songs "
Linger", "It's You" and "
Zombie" between interviews with other guests on the show. One of the guests was
Walter Koenig, who played
Pavel Chekov from
Star Trek.
2012 Producing/engineering Killer Bee album Aside from being an experienced musician, DeMarchi has also shown a keen interest in
audio engineering and music production projects. His latest engineering and collaborative production endeavors from his recording studio,
Denny DeMarchi Studios, produced an album titled
From Hell and Back by a Swedish/Canadian hard rock band
Killer Bee. DeMarchi was also the keyboard and rhythm guitar player on this album, which was released by an English record label Z-Records on 22 October 2012. == Solo Projects ==