With Ramses Shaffy Around 1967, van Leer recorded "Nooit Zal Ik Vergeten" which
Phonogram Records released as a
7-inch single which received little attention. In December 1967, during his first year at Amsterdam University, van Leer, unhappy with the course, landed a leading role in the Webster play
The Duchess of Malfi. At one rehearsal, he learned from radio and television presenter
Willem Duys that singer and actor
Ramses Shaffy was in the process of hiring a final member to his four-piece backing band and vocal group for his upcoming theatre act,
Shaffy Chantant. van Leer learned from Shaffy years later that the track "Jij Bent Nu Daarbinnen" ("You Are Now Within") was about him. This was followed by several performances from the group at some large venues, including shows at the
Holland Festival backed by the
Metropole Orchestra, the
Carré Theatre, and the
RAI Centre. yodelling, whistling, and
scat singing. His influence from the Sufi movement through his mother is displayed in "Moving Waves", a piano and vocal composition he wrote when he was sixteen and quotes a teaching from its creator,
Inayat Khan. The album closes with "Eruption", a 22-minute track that is "based on a musical idea" by van Leer who gained inspiration from the operas
Orfeo ed Euridice by
Christoph Willibald Gluck and ''
L'Orfeo by Claudio Monteverdi, combining rock, jazz and classical influences. Focus 3'' (1972) includes the band's second hit single "
Sylvia" and includes van Leer's organ and operatic vocals. Van Leer's classical background is evident on the van Leer/Akkerman penned title track on
Hamburger Concerto from 1974, based on
Variations on a Theme by Haydn by
Johannes Brahms. The miniature "Delitiae Musicae" equally belongs to Monteverdi. In 1969, van Leer played the flute on
Love Me or Leave Me (1969) by Dutch singer Rita Hovink. The following year, van Leer wrote, arranged and conducted music for singer
Bojoura for her third album,
The Beauty of Bojoura (1970). She had previously worked with van Leer's trio with Shaffy, singing a cover of "Frank Mills" from
Hair. Robin Lent used van Leer to play piano and flute on ''Scarecrow's Journey
(1971), and arranged and played the flute on the Dutch cast production album of Oh! Calcutta!'' (1971). Van Leer headed Focus through several line-up changes, and by early 1976 he was the only remaining original member; the group disbanded in 1978. In 2001, van Leer reformed Focus which has since released the albums
Focus 8 (2002),
Focus 9 / New Skin (2006), "Live In Europe" (2009),
Focus X (2012),,
Golden Oldies (2014),
Focus 8.5 / Beyond the Horizon (2016),
The Focus Family Album (2017),
Focus 11 (2018),
Focus50: Live in Rio (2021),
Completely Focussed (2021) and
Focus 12 (2024).
Solo career and other projects In mid-1972, after securing a solo recording deal with CBS Records, van Leer released his first solo album,
Introspection. It features a selection of classical pieces by Bach and
Gabriel Faure, Focus songs, and original compositions arranged for flute and orchestra by van Otterloo, and
soprano vocals by Letty de Jong. In late 1975, van Leer released
Introspection 2 which spent one week at number one in the Netherlands during a 19-week stay in the top 10. Van Leer continued the album series with
Introspection 3, in 1977. After Focus split in 1978, van Leer continued with his solo career and took part in various projects. He formed the rock band Conxi, featuring Dutch and Senegalese musicians, and a rock group Van Leer with an American singer. In the early 1980s, van Leer worked and toured with Spanish singer
Miguel Ríos playing keyboards and flute on his albums
Extraños en el escaparate (1981),
Rock & Ríos (1982) and
El rock de una noche de verano (1983). In 1981, van Leer formed the multi-national band Pedal Point with musicians Tato Gomez and from Chile and Paul Shigihara from Japan. They recorded a double album,
Dona Nobis Pacem, based on a composition van Leer had written that he later cited as "one of the most important compositions of mine", and a high point of his career in an artistic sense. In 1985, van Leer reunited with Akkerman and together recorded
Focus: Jan Akkerman & Thijs van Leer (1985). Van Leer was one of the artists who recorded the song
Shalom from Holland (written by
Simon Hammelburg and Ron Klipstein) as a token of solidarity to the Israeli people, threatened by missiles from Iraq, during the first Gulf War in 1991. He also appeared as a guest musician on the album,
Into the Electric Castle, by
Arjen Anthony Lucassen's musical project
Ayreon. In 2008, Explore Multimedia released van Leer's first solo album in almost a decade,
The Home Concert. The album features recordings made in his living room as he played material for
Focus 9. The album is exclusively available online. On 13 September 2008, van Leer was made a Knight of the
Order of Orange-Nassau for "special services to music." In 2010, van Leer performed at a concert with
Raccomandata Ricevuta Ritorno to celebrate 40 years of imaginative music ==Discography==