Question: Which member of Thenewno2 debuted as a professional musician assisting in recording his father's final album after his father's death?

Context paragraphs:
Mike Heidorn: Mike Heidorn, born 1967 in Belleville, Illinois, is the former drummer and founding member of alternative country bands Uncle Tupelo and Son Volt.  Heidorn also played with the Uncle Tupelo precursors the Primitives (or Primatives ) and the one-off band Coffee Creek with Jay Farrar and Jeff Tweedy of Uncle Tupelo and Brian Henneman of The Bottle Rockets.  Heidorn married and left Uncle Tupelo after the recording of their third album, March 16–20, 1992.  After the breakup of Uncle Tupelo Heidorn was reactivated by Farrar and joined the first version of Son Volt, but was not involved in the reformation of the band in 2005 and is no longer active as a professional musician.

Garron DuPree: Garron DuPree (born December 4, 1989) is a bass guitarist and recording engineer from Texas.  DuPree began his career as a professional musician in 2005 at the age of 15 as the bassist for the group Eisley, and became the bassist for Say Anything in 2013.  Garron DuPree is also a recording engineer as well as a session musician.

Thenewno2: Thenewno2 (styled as thenewno2) are an alternative rock band from London, originally composed of Dhani Harrison and Oliver Hecks, with Harrison playing lead guitar and singing lead vocals, and Hecks playing drums and synthesizer.  As of 2014, the band now consists of Harrison, Jonathan Sadoff, Jeremy Faccone, Paul Hicks, Aaron Older and Frank Zummo.  The name "Thenewno2" is a reference to the 1960s British television show, "The Prisoner".  Thenewno2 have been credited with the album design for George Harrison's "Brainwashed", "Concert for George", "The Dark Horse Years Box Set", and the menu design for the "Concert for Bangladesh" DVD.  Hecks was the still photographer for the "Concert For George", and some of his photographs appear in the Genesis Publications limited edition book, "Concert for George".

Meister Mephisto: Meister Mephisto is the first full-length album by Norwegian experimental black/thrash band Sturmgeist, the, then solo, project of Cornelius Jakhelln.  It was released on 24 January 2005.  It is the 94th release by French record label, Season Of Mist.  A live drummer was originally planned to be involved with the recording, but Jakhelln wound up programming the drums instead, making Meister Mephisto the first time Jakhelln released an album that was an individual effort after being a professional musician since 1995.  In an interview for Nocturnal Horde, Jakhelln stated that the music on the album was influenced by living for a month in Weimar, Germany.  In a press release for Blabbermouth.net Jakhelln stated "it is no coincidence if Meister Mephisto has Germanic culture as its scene and source.  In support of the album, Jakhelln garnered support from various Norwegian musicians, including drummer, Asgeir Mickelson of Borknagar and Spiral Architect fame, and went on a European tour with Season of Mist label mates, Carpathian Forest.

Micky Waller: Michael Waller (6 September 1941 – 29 April 2008) was an English drummer, who played with many of the biggest names on the UK rock and blues scene, after he became a professional musician in 1960.  In addition to being a member, albeit sometimes briefly, of some of the seminal bands of the 1960s, Waller played as a session musician with a host of UK and US artists and was famously known for never having a full drum kit whenever he turned up for recording sessions.

Savage Lover: "Savage Lover" is a 1979 hit recording by the American disco group, The Ring.  The tune was produced and written by studio musician - composer Marcus Barone and the professional musician Fausto Lucignani who also co-produced the hit record.  Savage Lover hit #1 on the Pop Charts in Mexico for weeks.  It hit #14 on the American Dance Billboard charts.  The Ring disbanded in 1981, yet Savage Lover was often still played throughout the 1980s in the United States and Mexico.  It was released by Vanguard as a single in 1979 and was featured on The Ring's debut album in 1981.  The track was mixed by disco consultant Ray 'Pinky" Velazquez.

Dhani Harrison: Dhani Harrison ] (born 1 August 1978) is a British multi-instrumentalist musician, composer and singer-songwriter who is the only child of George and Olivia Harrison.  Harrison debuted as a professional musician assisting in recording his father's final album, "Brainwashed", and completing it with the assistance of Jeff Lynne after his father's death in November 2001.  Harrison went on to win Best Pop Instrumental Performance for the track, "Marwa Blues", at the 2004 Grammy Awards.  Harrison formed his own band, thenewno2, in 2002 and has performed at some of the world’s most prestigious festivals including Coachella where Spin Magazine dubbed their performance as one of the "best debut performance of the festival."  The band also played Lollapalooza three times with Harrison joining the festival’s founder Perry Farrell on a cover of Velvet Underground’s “Sweet Jane” at 2010’s event.  In 2017 Harrison announced he would be playing his first-ever solo shows at the Panorama Festival in NYC.

La India Canela: "La India Canela" is an accordionist and musician from the Dominican Republic.  She plays music from the merengue típico tradition.  Born Lidia Maria Hernandez Lopez, she was born in El Limon, Villa González, in the Santiago Province.  She is the first professional musician in her family, though her father and brother played recreationally.  Both terms in her stage name refer to her skin color: India is the preferred term for mulatto in the Dominican Republic and canela carries the additional connotation of sweetness and spiciness.

Edward D. Re: Edward Domenic Re (October 14, 1920 – September 17, 2006) was a United States lawyer and judge.  He served in the U.S. Air Force for 26 years, during both World War II and the Korean War, and, in 1968, served as Assistant Secretary of State for Educational and Cultural Affairs.  He taught throughout his career and became a full-time faculty member at St. John's Law School after retiring from the bench.  He was a prolific writer, a professional musician, and father of twelve children.

Paul Hicks (musician): Paul Hicks is a three-time Grammy Award winning musician, engineer and mixer who got his start working at Abbey Road Studios.  Hicks has worked with notable artists including: Coldplay, Elliott Smith, Paul McCartney in addition to his own band thenewno2.  Paul has also been heavily involved in preserving The Beatles recordings, working hand in hand with George Martin in remixing and remastering their entire catalogue.  This effort has won Hicks 3 Grammy Awards.  His father is The Hollies guitarist Tony Hicks.  Paul is a member of Dhani Harrison's band thenewno2.

Supporting paragraphs: Thenewno2 Dhani Harrison
Answer: Dhani Harrison