The first public concert by Pentangle was a sell-out performance at the
Royal Festival Hall, on
27 May 1967. Later that year, they undertook a short tour of Denmark — in which they were disastrously billed as a
rock'n'roll band — and a short UK tour, organised by
Nathan Joseph of
Transatlantic Records. By this stage, their association with Bruce Dunnett had ended and, early in 1968, they acquired
Jo Lustig as a manager. With his influence, they graduated from clubs to concert halls and from then on, as Colin Harper puts it, "the ramshackle, happy-go-lucky progress of the Pentangle was going to be a streamlined machine of purpose and efficiency".
Pentangle signed up with
Transatlantic Records and their eponymous
debut LP was released in May 1968. This all-acoustic album was produced by
Shel Talmy who has claimed to have employed an innovative approach to recording acoustic guitars to deliver a very bright "bell-like" sound. On
29 June of that year they performed at
London's Royal Albert Hall. Recordings from that concert formed part of their second album,
Sweet Child (released in November
1968), a double LP comprising live and studio recordings. Showcasing the group's eclectic approach (and Jansch's growing songwriting ability), it is generally regarded as their creative high point. "At this point [the Festival Hall concert] the five members of the group were at their live peak, complementing and collaborating with each other in various combinations....The balance between the constituent parts, onstage at least, would never again be so perfect."</bgref>
Basket Of Light, which followed in mid
1969, was their greatest commercial success, thanks to a surprise hit single,
Light Flight which became popular through its use as theme music for a TV drama series
"Take Three Girls" (the BBC's first drama series to be broadcast in colour) for which the band also provided incidental music. By 1970, they were at the peak of their popularity, recording a soundtrack for the film
Tam Lin, making at least 12 television appearances, and undertaking tours of the UK (including the Isle of Wight Festival) and America (including a concert at the Carnegie Hall). However, their fourth album,
Cruel Sister, released in October 1970, was a commercial disaster. This was an album of traditional songs that included a 20-minute long version of
Jack Orion, a song that Jansch and Renbourn had recorded previously as a duo.