Question: Which Led Zepplin bassist arranged Meic Stevens first single for Decca Records?

Context paragraphs:
Rex Records (1965): Rex Records (record distributors, Irish Record Factors, now owned by Decca Records) introduced the Rex record label in 1965 to supply the Irish market with material by showbands, ballad singers, solo performers, and the like.  Among the artists who had their first releases on Rex was Dana, Ireland's 1970 Eurovision contestant, whose winning entry, "All Kinds of Everything", topped the Irish and British charts and amassed worldwide sales of over 2 million.  Also released on Rex was a series of recordings by the band the Memories.  The label ceased to operate in the early 1980s following Decca's purchase by PolyGram.  The label was similar to the classic Decca silver box on black background but with black REX logo on orange or blue background, or silver on green or blue.

Felsted Records: Felsted Records was the name of two record labels.  The UK version began as a subsidiary of Decca Records in July 1954, with music mainly in the jazz and dance band genres and recordings leased from the French Blue Star, Riviera and Classique labels.  The label took its name from the village where Sir Edward Lewis, the head of UK Decca, lived.  The British label's only release of note was "Smokie", the first single by Bill Black's Combo, Black having been Elvis Presley's bassist, licensed from Hi Records.

Looking Back (John Mayall album): Looking Back is the seventh album released by John Mayall in August 1969 by Decca Records.  The album features songs by both John Mayall's Bluesbreakers and John Mayall solo work.  The album reached No. 79 on the "Billboard" 200.  Confusingly, there are two different albums with the title "Looking Back": a Decca UK release as a single album (SKL 5010) and a Decca Germany (issued by TELDEC) release as a double album (DS 3104/1-2).  Later issues on CD would use the Deram label.

Schoolboy Blues: "Schoolboy Blues" is a 1970 song by The Rolling Stones, commonly recognised by the name "Cocksucker Blues".  It was written by Mick Jagger to be the Stones' final single for Decca Records as per their contract.  The song is a parody of Dr. John's "The Lonesome Guitar Strangler", released on his 1969 album "Babylon", however its context and language were chosen specifically to anger Decca executives and there are references to fellatio and anal sex in the lyrics.  The track was refused by Decca, although promotional 12" singles of it were pressed in the United States.

Decca Records: Decca Records is a British record label established in 1929 by Edward Lewis.  Its U.S. label was established in late 1934 by Lewis, along with American Decca's first president Jack Kapp and later American Decca president Milton Rackmil.  In 1937, as a result of anticipating Nazi aggression leading to World War II, Lewis sold American Decca and the link between the U.K. and U.S. Decca labels was broken for several decades.  The British label was renowned for its development of recording methods, while the American company developed the concept of cast albums in the musical genre.  Both wings are now part of the Universal Music Group, which is owned by Vivendi, a media conglomerate headquartered in Paris, France.  The US Decca label was the foundation company that evolved into UMG.

Meic Stevens: Meic Stevens (born March 13, 1942) is a Welsh singer-songwriter often referred to as "the Welsh Dylan", who has been compared with Syd Barrett.  Stevens's songs have a mystical, faintly psychedelic flavour, and are mostly sung in his native Welsh language.  Still largely unknown outside Wales, he was discovered by DJ Jimmy Savile, who saw him performing in a Manchester folk club in 1965.  This led to Stevens recording his first single - with arranger John Paul Jones (later of Led Zeppelin) - for Decca Records that same year, though it sold badly.

New Masters: New Masters is the second studio album by singer-songwriter Cat Stevens.  The album was released in December 1967 by Deram Records, a new subsidiary of Decca Records as a follow up to the highly successful debut album, "Matthew and Son".  The label was disappointed by his second album's poor sales, given that the previous album made the UK Top Ten and produced several hit singles.  "New Masters" generated little interest, failing to chart in either the UK or the United States.  The single "Kitty"/"Blackness of the Night" languished at number 47, becoming Stevens' first single to miss the top 40.  This was a sudden and steep commercial decline from the considerable success that Stevens enjoyed with his earlier recordings.

Bill Haley's Chicks: Bill Haley's Chicks was the eighth album of rock and roll recordings by Bill Haley & His Comets for Decca Records, Decca 8821.  Released in January 1959 and produced by Milt Gabler, the album was the third "theme" album Haley recorded for Decca, following "Rockin' the Oldies" (rock and roll versions of standards) and "Rockin' Around the World" (rock and roll versions of folk songs).  This album is built on the theme of women's names, with each song being about a different girl.  Included on the album is "Skinny Minnie", which was a major hit for the band in 1958, reaching no.22 on Billboard and no.25 on Cashbox, along with a mixture of originals and cover versions of standards and jazz songs.  "Lean Jean", a song musically and thematically almost identical to "Skinny Minnie", also charted in 1958, reaching no. 52 on Cashbox.  The song "B.B. Betty", co-written by Bill Haley and released as a Decca 45 single, featured a solo vocal by Haley's steel guitar player, Billy Williamson.

Dora the Female Explorer: "Dora the Female Explorer" (not to be confused with the Nickelodeon children's series) is the first single by the English group Stackridge, released in 1971.  The song also appeared on some versions of the group's debut album "Stackridge" the same year.  It was released in the UK on MCA Records and in the US on Decca Records.  The UK single also contained the non-album B-side, "Everyman."  Though the record was not a big success, it did help the group to get the attention of many influential figures in the music business, such as John Peel of the BBC.  This soon led to wider exposure through a few BBC Radio 1 performances.

John Paul Jones (musician): John Richard Baldwin (born 3 January 1946), better known by his stage name John Paul Jones, is an English multi-instrumentalist, songwriter, composer, arranger and record producer.  Best known as the bassist for the English rock band Led Zeppelin, Jones has since developed a solo career.  A versatile musician, Jones also plays organ, guitar, koto, lap steel guitars, mandolin, autoharp, violin, ukulele, sitar, cello, continuum and recorder.

Supporting paragraphs: Meic Stevens John Paul Jones (musician)
Answer: John Paul Jones