Question: The Speed of Sound is an all-instrumental album, released in which year, by American rock guitarist Ronnie Montrose, who led the band Montrose?
Context: "'Bad Motor Scooter" was the second track from the album "Montrose" by the band of the same name.  It, along with "Rock Candy", was arguably the best known song by the band, Montrose.  The song was penned by frontman Sammy Hagar.  Its intro, a distorted electric slide guitar sound which closely emulates that of a revving motorcycle, became the defining component of the song.  When the song was conceived before this guitar sound, the band and Ted Templeman were not impressed because they thought it was missing a "hook", to make it stand out.  Ronnie Montrose stumbled upon it while messing with a slide and fuzz box one day in the studio.  Playing his guitar in Open D tuning, Montrose improvised what became the motorcycle sound — although Templeman and engineer Donn Landee kept him going when they failed to get the tape rolling. Roll Over and Play Live is a live album of instrumental rock music by Ronnie Montrose.  It was recorded at Magnolia's in Santa Rosa, California in the summer of 1995.  It features five original songs: "Feet First", "Cold Film", "Seven Men Riding", "Jungle Boy" and "Greenthing".  "Greenthing" adds in a few "Rock Candy" elements from the "Montrose" album.  "Primary Function", "Indigo Spheres", "Largemouth" and "Wish in One Hand" are from the "Music From Here" album.  "Sidewinder" originally appeared on the album "The Speed Of Sound". Ronald Douglas Montrose (November 29, 1947 – March 3, 2012) was an American rock guitarist, who led the bands Montrose (1973-77 & 1987) and Gamma (1979-83 & 2000) and also performed and did session work with a variety of musicians, including Van Morrison (1971–72), Herbie Hancock (1971), Beaver & Krause (1971), Boz Scaggs (1971), Edgar Winter (1972 & 1996), Gary Wright (1975), The Beau Brummels (1975), Dan Hartman (1976), Tony Williams (1978), The Neville Brothers (1987), Marc Bonilla (1991 & 1993), Sammy Hagar (1997), and Johnny Winter.  The first "Montrose" album was often cited as "America's answer to Led Zeppelin" and Ronnie Montrose was often referred to as one of the most influential guitarists in American hard rock. Glenn Letsch, (born Jun 23, 1949) is an American bass guitarist.  He was in a Los Angeles band with Mitchell Froom called "Bullet Park" .  After Ronnie Montrose produced their demo, he asked Letsch to join his band Gamma, where Letsch became friends with singer Davey Pattison.  When Gamma disbanded in 1982, Pattison became Robin Trower's principal vocalist and Letsch continued with several of Ronnie Montrose projects and session work including playing bass on Sims computer games.  He joined Trower's touring band in 2008 reuniting with Pattison. Montrose was a California-based hard rock band.  The band originally featured Ronnie Montrose on guitar and future solo artist and Van Halen frontman Sammy Hagar.  Rounding out the original foursome were bassist Bill Church and drummer Denny Carmassi. Jim Alcivar is an American keyboard and synthesizer player and sound engineer.  He is most noted for his connection to guitarist Ronnie Montrose and appearing in his bands Montrose and Gamma and on his first solo album "Open Fire".  His father is composer, arranger and producer Bob Alcivar. Gamma was a band formed by guitarist Ronnie Montrose and singer Davey Pattison in San Francisco in 1979.  They released four albums: "Gamma 1" (1979), "Gamma 2" (1980), "Gamma 3" (1982) (all on Elektra Records) and "Gamma 4" (2000).  Some of their best known songs are probably "Fight to the Finish" from their first album, and "Meanstreak" and "Voyager" from the second album. Davey Pattison (born November 18, 1945 in Scotland) is a San Francisco Bay Area based rock vocalist.  Pattison recorded his first music in 1969, and his career took off after arrival in the United States in 1979, on invitation from Bill Graham, to front the band Gamma, formed by Bay Area guitarist Ronnie Montrose. William "Bill" Church (born 9 December 1946) started out playing bass in a band called Sawbuck in 1969, with Mojo Collins, Starr Donaldson, Ronnie Montrose and Chuck Ruff.  As the band was beginning to record their first album, Montrose and Church left Sawbuck to join Van Morrison on his "Tupelo Honey" album.  When Montrose rejoined Ruff to record Edgar Winter Group's smash "They Only Come Out at Night", Church remained with Morrison and appeared on the "Saint Dominic's Preview" LP.  When Montrose left Winter to form his own hard rock outfit, Montrose, Church was recruited along with singer Sammy Hagar and drummer Denny Carmassi.  Church was replaced on the second Montrose album "Paper Money" by Alan Fitzgerald. The Speed of Sound is a 1988 all-instrumental album by American rock guitarist Ronnie Montrose, who led the bands Montrose (1973-77 & 1987) and Gamma (1979-83 & 2000) and also performed and did session work with a variety of musicians, including Van Morrison (1971–72), Herbie Hancock (1971), Beaver & Krause (1971), Boz Scaggs (1971), Edgar Winter (1972 & 1996), Gary Wright (1975), The Beau Brummels (1975), Dan Hartman (1976), Tony Williams (1978), The Neville Brothers (1987), Marc Bonilla (1991 & 1993), Sammy Hagar (1997), and Johnny Winter.  In 1997, Ronnie stated that this album was his favorite instrumental record he had done so far.  The track titles are words and phrases referencing aviation themes.
Answer: 1988