Question: Which musician, Edwyn Collins or Jimmie Ross, played the bass guitar?

Context paragraphs:
Gorgeous George (album): Gorgeous George is the third solo studio album by Scottish musician Edwyn Collins.  The album was recorded at New River in London, with Collins acting as the producer.

I'm Not Following You: I'm Not Following You is an album by Scottish musician Edwyn Collins released in 1997.

Doctor Syntax (album): Doctor Syntax is an album by Scottish musician Edwyn Collins.

Hellbent on Compromise: Hellbent on Compromise is an album by a Scottish musician Edwyn Collins.

Paul Quinn (singer): Paul Walter Quinn (born 1959) is a Scottish musician who was the lead singer of cult 1980s band Bourgie Bourgie, and also released records with Jazzateers, Vince Clarke and Edwyn Collins and sang on an early track by the French Impressionists.

A Casual Introduction 1981/2001: A Casual Introduction 1981/2001 is an album by Scottish musician Edwyn Collins.  It is a collection of both his solo work and also work of Orange Juice, the band he fronted from 1979 to the mid-80s.

Hope and Despair: Hope and Despair is the debut solo album by Scottish musician Edwyn Collins.

Edwyn Collins: Edwyn Stephen Collins (born 23 August 1959) is a Scottish musician, producer and record label owner from Edinburgh, Scotland.  Collins was the lead singer for the 1980s post-punk band Orange Juice, which he co-founded.  Following the group's split in 1985, Collins started a solo career.  His 1994 single "A Girl Like You" was a worldwide hit.

Orange Juice (band): Orange Juice was a Scottish post-punk band founded in the Glasgow suburb of Bearsden as the Nu-Sonics in 1976.  Edwyn Collins formed the Nu-Sonics (named after a cheap brand of guitar) with his school-mate Alan Duncan and was subsequently joined by James Kirk and Steven Daly, who left a band called The Machetes.  The band became Orange Juice in 1979.  They are best known for the hit "Rip It Up", which reached number 8 on the UK Singles Chart in February 1983, the band's only UK Top 40 hit.

Jimmie Ross: Jimmie Ross is an American rock guitarist and vocalist who is best known for being a member of Pittsburgh band the Jaggerz, known for their 1970 hit "The Rapper".  During the band's initial existence of 1965-1976, the bassist shared the duties of lead vocalist with guitarist Donnie Iris.  By the time the Jaggerz regrouped in 1989, Iris was well into his solo career, and Ross became the sole lead vocalist and remained bassist.  He continues to hold both positions today.

Supporting paragraphs: Edwyn Collins Jimmie Ross
Answer: Jimmie Ross