Heather Sewell. At the time, she was an art student and had been the girlfriend of Roy Harper. She inspired several of Jansch's songs and instrumentals, the most obvious being "Miss Heather Rosemary Sewell" from his 1968 album Birthday Blues, but Jansch says that, despite the name, "M'Lady Nancy" from the 1971 Rosemary Lane album was also written for her. As Heather Jansch, she became a well-known sculptor. Pentangle years: 1968–73 Pentangle's first major concert was at the Royal Festival Hall in 1967, and their first album, The Pentangle, was released in the following year. Pentangle embarked on a demanding schedule of touring the world and recording and, during this period, Jansch largely gave up solo performances. He did, however, continue to record, releasing Rosemary Lane in 1971. The tracks for this album were recorded on a portable tape recorder by Bill Leader at Jansch's cottage in Ticehurst, Sussex—a process which took several months, with Jansch only working when he was in the right mood. Pentangle reached their highest point of commercial success with the release of their Basket of Light album in 1969. The single "Light Flight", taken from the album, became popular through its use as theme music for a TV drama series, Take Three Girls, for which the band also provided incidental music. In 1970, at the peak of their popularity, they recorded a soundtrack for the film Tam Lin, made at least 12 television appearances, and undertook tours of the UK (including the Isle of Wight Festival) and America (including a concert at 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 on Jansch's Jack Orion album. Pentangle recorded two further albums, but the strains of touring and of working together as a band were taking their toll. Then Pentangle withdrew from their record company, Transatlantic, in a bitter dispute regarding royalties. The final album of the original incarnation of Pentangle was Solomon's Seal released by Warner Brothers/Reprise in 1972. Colin Harper describes it as "a record of people's weariness, but also the product of a unit whose members were still among the best players, writers and musical interpreters of their day." Pentangle split up in January 1973, and Jansch and his