Sponsored by the nonprofit Americans for Indian Future and Tradition, with the help of Ken Kragen and Friends, Williams performed two shows. The event raised enough funds to pay for the construction of the block walls. In 1987, he teamed with Mannheim Steamroller to release a new album on the American Gramaphone label. The album, titled Classical Gas, included a remake of the 1968 composition. Another track from the album, "Country Idyll", was a 1988 nominee for a Grammy in the country music category for "Best Instrumental Performance by a Soloist, Group or Orchestra". The album went gold in 1991. Williams' plexiglass guitar appears on the cover of the album. He released an acoustic instrumental album of Christmas and holiday music, A Gift of Song, on the Real Music label, featuring arrangements of traditional carols and original compositions. In 1992, the Vanguard label released Music 1968–1971, a compilation of tracks from his five Warner Bros. albums recorded in the late 1960s and early 1970s. Williams relates that when compiling the album he went to Warner Bros. and asked "Where's that painting that Ed Ruscha did for that old [Music] cover?" and was told it had been thrown away; a probable loss of 3–5 million dollars. In conjunction with the release of this album, Williams added a "Holiday Concert Program" to his repertoire, featuring music from the album as well as other traditional music of the season. In 1994, he played six sold-out concerts with the Oregon Symphony in Portland, Oregon. In the 1990s he also performed with the Eugene Symphony with friend Ken Kesey. Williams then concentrated on a variety of programs for his concert appearances. His "Concert For Bluegrass Band And Orchestra", also titled "Symphonic Bluegrass", has been performed with over 40 symphony orchestras, including the Colorado Symphony Orchestra, Kansas City Symphony, Louisiana Philharmonic Orchestra, Oklahoma City Philharmonic, Louisville Orchestra, and the Edmonton Symphony Orchestra. In 1984, Williams released an album, Of Time & Rivers Flowing, on his own Skookum label, containing 14 of the approximately 35 songs performed in the concert. In 1993, the title cut from the album was used as the soundtrack for a ninety-second public service announcement (PSA) created by the American Rivers Council on the home video release of A River Runs Through It. The PSA was also on the 1995 home video release of The River Wild. That same year, in 1995, Williams