Question: How long was the musician who conceived The Lifehouse Method with his band?

Context paragraphs:
Pete Townshend: Peter Dennis Blandford Townshend (born 19 May 1945) is an English musician, singer, songwriter, and multi-instrumentalist, best known as the lead guitarist, backing vocalist, and main songwriter for the rock band the Who.  His career with the Who spans over 50 years, during which time the band grew to be considered one of the most influential bands of the 20th century.

Ron Aniello: Ron Aniello is an American writer, producer, composer and musician who has enjoyed a diverse career working with such artists as Bruce Springsteen, Matthew Koma, Shania Twain, Wanting Qu, Gavin DeGraw, Lifehouse, Patti Scialfa, Barenaked Ladies, Guster, Jars of Clay, Bridgit Mendler, Sixpence None the Richer, Jude Cole, Vanessa Amorosi, Moshav Band and many more.  In addition, Aniello has composed scores for film and television, and the Ringling Bros. and Barnum and Bailey Circus, and has been nominated for Grammy Awards.

The Lifehouse Method: The Lifehouse Method was an Internet site where applicants could sit for an electronic musical portrait made up from data they enter into the website.  This website was the result of a collaboration between The Who's principal songwriter and composer Pete Townshend, composer Lawrence Ball and software developer Dave Snowdon.  The website was operated by Eel Pie Recording Production, Limited, a company set up in 1970 by Pete Townshend.

Lifehouse (rock opera): Lifehouse was a science fiction rock opera by the Who intended as a follow-up to "Tommy".  It was abandoned as a rock opera in favour of creating the traditional rock album "Who's Next", though its songs would appear on various albums and singles by the Who, as well as Pete Townshend's solo albums.  In 1978, aspects of the Lifehouse project were revisited by the Who on "Who Are You".  In 2000, Townshend revived the Lifehouse concept with his set "Lifehouse Chronicles" and the sampler "Lifehouse Elements".  On 1 May 2007, Townshend released online software called "The Lifehouse Method" in which any "sitter" could create a musical "portrait".  The site is now defunct.

Rock Is Dead—Long Live Rock!: Rock Is Dead—Long Live Rock was the title of an unreleased 1972 autobiographical album by the British rock band The Who.  In the liner notes for the Who's 1974 rarities collection "Odds & Sods", guitarist and lead songwriter Pete Townshend said, "I had an idea once for a new album about the history of The Who called "Rock Is Dead—Long Live Rock".  That idea later blossomed into "Quadrophenia"."  The sessions for the album spanned from 19 May to 6 June at Olympic Studios in London.  "Rock Is Dead—Long Live Rock" was to be produced by The Who and Glyn Johns and scheduled for release in October 1972, but although the album was nearly completed (according to Townshend) the band felt as though it sounded too much like their 1971 LP "Who's Next".  Townshend later stated that "Rock Is Dead—Long Live Rock" was also going to be a TV special about The Who.  Some of the songs recorded during the "Rock Is Dead—Long Live Rock" sessions were originally written for another unreleased Who album, 1971's failed "Lifehouse".

Method Music: Method Music is a double-album of electronic music by the English composer and mathematician Lawrence Ball created using the compositional system that would become The Lifehouse Method, an online-based compositional project conceived by Pete Townshend of The Who to compose customized algorithmically-generated musical portraits.  The album's music evolved from tests of the portraiture system.

Guerrilla (album): Guerrilla is the third studio album by Welsh rock band the Super Furry Animals.  The record was released on 14 June 1999 by Creation Records and peaked at number 10 in the UK Albums Chart.  "Guerrilla" was conceived as a commercial 'pop' album and was produced by the band themselves, as regular producer Gorwel Owen felt exhausted after a busy schedule working for other bands.  Recording took place at Real World Studios, Box, Wiltshire in mid-1998 with the group experimenting with a sampler for the first time and writing a number of songs in the studio.  The band tried to create a 45-minute long, immediate sounding record, and therefore chose the upbeat songs from the 25 tracks which were recorded during sessions for the album.  "Guerrilla" was chosen as the album's title as a pun on the group's name.

The Astonishing: The Astonishing is the thirteenth studio album by American progressive metal band Dream Theater, released on January 29, 2016 through Roadrunner Records.  It is the band's second concept album, with a story conceived by guitarist John Petrucci and music written by Petrucci and keyboardist Jordan Rudess.  Composer David Campbell assisted with orchestrating the album's strings and choirs.  The album was recorded throughout 2015 at Cove City Sound Studios in Long Island, New York, with the exception of vocals, which were recorded in Canada.  Mixing and sound engineering were performed by the band's longtime collaborator, Richard Chycki, with Petrucci producing.

Jude Cole: Jude Cole (born June 18, 1960) is an American singer-songwriter, manager and record producer who started out as a four-sets-a-night musician, sideman and session guitarist, graduated to solo artist with three albums on Warner Bros. in the late ‘80s and early ‘90s, one release on Island Records, (1995) and one independent effort before he became manager, producer and co-writer with the band Lifehouse, actor Kiefer Sutherland and others.

Bryce Soderberg: Bryce Dane Soderberg (born April 10, 1980) is a Canadian musician and songwriter, best known as the bassist and vocalist for American rock band Lifehouse.

Supporting paragraphs: Method Music Pete Townshend
Answer: over 50 years