Question: What type of musical skill does Tim Wheeler and Ranking Roger have in common?

Context paragraphs:
Goldfinger (Ash song): "Goldfinger" is a song by Ash, released from their album "1977" on 15 April 1996.  The song was written by Tim Wheeler and produced by Owen Morris.  It was released as a single CD, a 7" vinyl (the limited edition 7" comes with a golden glitter clear vinyl and an accompanying picture sleeve), and as a cassette.

Twilight of the Innocents: Twilight of the Innocents is the fifth studio album by Ash, released on 29 June 2007 in Ireland and 2 July 2007 in the United States and the United Kingdom.  The album was produced by Tim Wheeler, and mixed by Michael Brauer.

¡Cuatro!: ¡Cuatro!  is a 2013 rockumentary starring the punk rock band Green Day, directed by Tim Wheeler.  The film documents the creation of the band's 2012 album trilogy "¡Uno! ", "¡Dos! " and "¡Tré! ".  The documentary, directed by Tim Wheeler and produced by Tim Lynch (who had previously produced Green Day's "Bullet in a Bible" in 2005), was released through Reprise Records on the September 24, 2013.  A 40-minute version of the documentary premiered on VH1 in 2012.  The documentary contains footage of Green Day's producer Rob Cavallo and Green Day's days composing and organizing the trilogy until their release. " ¡Cuatro!"  was nominated for a Grammy Award for Best Music Film.

Ranking Roger: Ranking Roger (born Roger Charlery, 21 February 1963) is a British musician.  He was a vocalist in the 1980s two-tone band, The Beat (known in the US as The English Beat) and later General Public.  He currently leads a reformed Beat line-up.

Felice Rosser: Felice Rosser (born Detroit, Michigan) is a singer, songwriter, bass player, actor and writer.  She attended Cass Technical High School in Detroit before enrolling at Barnard College in New York City.  She now lives and works in New York.  She is known for her powerful and emotional voice, her musical skill as a bass player and as a singer and songwriter.  She also performs as an actress.

Étude: An étude ( ; ] , a French word meaning "study") is an instrumental musical composition, usually short, of considerable difficulty, and designed to provide practice material for perfecting a particular musical skill.  The tradition of writing études emerged in the early 19th century with the rapidly growing popularity of the piano.  Of the vast number of études from that era some are still used as teaching material (particularly pieces by Carl Czerny and Muzio Clementi), and a few, by major composers such as Frédéric Chopin, Franz Liszt and Claude Debussy, achieved a place in today's concert repertory.  Études written in the 20th century include those related to traditional ones (György Ligeti) and those that require wholly unorthodox technique (John Cage).

Random Gender: Random Gender were a Wiltshire Progressive Garage band founded in 1982 by twin brothers Jon and Simon Cousins; who later went on to be prominent members of Wiltshire folk rockers Ophiuchus and Liverpool's indie rock group The Onset respectively.  Although Random Gender remained unsigned to any major record label they attracted a great deal of attention "thanks to their musical skill and professionalism in advertising", leading to write-ups in the national music press.

Tim Wheeler: Timothy James Arthur Wheeler (born 4 January 1977), known as Tim Wheeler, is a Northern Irish guitarist, songwriter, and vocalist for the rock band Ash.  He formed the band with Mark Hamilton and they were originally called Vietnam.  Wheeler can be seen playing a Korina Gibson Flying V in almost all of Ash's music videos.  He has written nearly all of their notable pieces such as "Oh Yeah", "Shining Light", "Girl From Mars", "Kung Fu", and "Goldfinger".  In September 2014 Tim announced details of his debut solo album "Lost Domain" with a release date of 3 November 2014.

Taplow Choirs: Taplow Choirs is a group of four choirs for young people which rehearse in the village of Taplow, UK near Slough.  It was founded in September 2004 by Philip Viveash and Gillian Dibden MBE (Sainsbury's Choral Director of the Year 2002) after both conductors split from Berkshire Maestros (then Berkshire Young Musicians Trust).  They held their first concert in the Christmas of 2004.  They are a professional highly prestigious choir and make up some of the top youth choirs in the world!  They require high musical skill in young performers and auditions.  They frequently perform in venues such as Windsor Castle and other professional events around London, have been on international tours and won the BBCs youth choir of the year award.

Kung Fu (song): "Kung Fu" is a song by the band Ash, released as the first single from their album, "1977".  It was released in March 1995 as a CD single, limited edition 7”, and standard 7” vinyl.  The song was written by Tim Wheeler and produced by Owen Morris.

Supporting paragraphs: Tim Wheeler Ranking Roger
Answer: vocalist