[Q]: Information: - Dave Pegg (born 2 November 1947) is an English multi-instrumentalist and record producer, arguably most visible as a bass guitarist. He is the longest-serving member of the pre-eminent electric folk band Fairport Convention and has been bassist with a number of important folk and rock groups including The Ian Campbell Folk Group and Jethro Tull. He has appeared on some of the most significant albums of his era, as well as undertaking solo projects. His style of playing bass has been particularly influential in electric folk music. - Chrysalis Records is a British record label that was created in 1969. The name was both a reference to the pupal stage of a butterfly and a combination of its founders' names, Chris Wright and Terry Ellis. It started as the Ellis-Wright Agency. - Roots to Branches is the 19th studio album by the British band Jethro Tull released in September 1995. It carries characteristics of Tull's classic 1970s art-rock and folk-rock roots alongside jazz and Arabic and Far Eastern influences. All songs were written by Ian Anderson and recorded at his home studio. This is the last Tull album to feature Dave Pegg on the bass, and the first to feature keyboardist Andrew Giddings as an official band member, although he had contributed to "Catfish Rising" (1991) on a sessional basis. It was also the final Tull album to be released through long-time label Chrysalis Records. - Andrew Giddings (born 10 July 1963) is an English keyboardist and was a member of Jethro Tull from 1991 to 2007. - Progressive rock (shortened as "prog"; sometimes "art rock", "classical rock" or "symphonic rock") is a broad subgenre of rock music that developed in the United Kingdom and United States throughout the mid to late 1960s. Initially termed "progressive pop", the style was an outgrowth of psychedelic bands who abandoned standard pop traditions in favour of instrumentation and compositional techniques more frequently associated with jazz, folk or classical music. Additional elements contributed to its "progressive" label: lyrics were more poetic, technology was harnessed for new sounds, music approached the condition of "art", and the studio, rather than the stage, became the focus of musical activity, which often involved creating music for listening, not dancing. - Classical music is art music produced or rooted in the traditions of Western music, including both liturgical (religious) and secular music. While a more accurate term is also used to refer to the period from 1750 to 1820 (the Classical period), this article is about the broad span of time from roughly the 11th century to the present day, which includes the Classical period and various other periods. The central norms of this tradition became codified between 1550 and 1900, which is known as the common-practice period. The major time divisions of Western art music are as follows: European art music is largely distinguished from many other non-European and some popular musical forms by its system of staff notation, in use since about the 16th century. Western staff notation is used by composers to indicate to the performer the pitches (e.g., melodies, basslines, chords), tempo, meter and rhythms for a piece of music. This can leave less room for practices such as improvisation and "ad libitum" ornamentation, which are frequently heard in non-European art music and in popular-music styles such as jazz and blues. Another difference is that whereas most popular styles adopt the song (strophic) form, classical music has been noted for its development of highly sophisticated forms of instrumental music such as the concerto, symphony, sonata, and mixed vocal and instrumental styles such as opera which, since they are written down, can sustain larger forms and attain a high level of complexity. - Through the Years is a compilation album by the progressive rock band Jethro Tull . It is something of a retrospective ; with songs from many different periods in the band 's history . It is not a greatest hits album ; as it has many songs not on such albums ( Such as '' Quizz Kid '' , '' Still Loving You Tonight '' and '' Beastie '' . ) It has material spanning all over the band 's existence , from their first album to Roots to Branches . The liner notes contain a short history of Jethro Tull , starting humorously with the question '' Did n't Jethro Tull die of a drug overdose ? '' - Catfish Rising is the 18th studio album by the British rock group Jethro Tull, released in 1991. It is the first Tull album to feature keyboardist Andrew Giddings. What entity does 'through the years ' has the relation 'producer' with?
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[A]: ian anderson

[Q]: Information: - An expendable launch system is a launch system that uses an expendable launch vehicle (ELV) to carry a payload into space. The vehicles used in expendable launch systems are designed to be used only once (i.e. they are "expended" during a single flight), and their components are not recovered for re-use after launch. The vehicle typically consists of several rocket stages, discarded one by one as the vehicle gains altitude and speed. - Scout X-1 was an American expendable launch system and sounding rocket which was flown seven times between August 1960 and October 1961. Four orbital and three suborbital launches were made, with four of the launches resulting in failures. - A sounding rocket, sometimes called a research rocket, is an instrument-carrying rocket designed to take measurements and perform scientific experiments during its sub-orbital flight. The rockets are used to carry instruments from above the surface of the Earth; the altitude generally between weather balloons and satellites (the maximum altitude for balloons is about and the minimum for satellites is approximately ). Certain sounding rockets, such as the Black Brant X and XII, have an apogee between ; the maximum apogee of their class. Sounding rockets often use military surplus rocket motors. NASA routinely flies the Terrier Mk 70 boosted Improved Orion lifting payloads into the exoatmospheric region between . - Scout X-2 was an American expendable launch system and sounding rocket which was flown twice in 1962. It was a four-stage rocket, based on the earlier Scout X-1, uprated first and third stages. It was a member of the Scout family of rockets. - Scout X- 2M was an American expendable launch system which was flown three times between May 1962 and April 1963 . It was a four - stage rocket , based on the earlier Scout X- 2 , but with an MG - 18 upper stage instead of the Altair used on the X- 2 . It was a member of the Scout family of rockets . The Scout X- 2 was an all - solid rocket , with an Algol 1D first stage , a Castor 1A second stage , an Antares 2A third stage , and an MG - 18 fourth stage . It was launched from Launch Complex D at Point Arguello , and was used for the launch of P - 35 weather satellites . The first Scout X- 2M was launched 24 May 1962 , carrying P35 - 1 , but failed to reach orbit . The second flight , launched at 11:44 GMT on 23 August , was the only successful launch to be made by an X- 2M , placing P35 - 2 into low Earth orbit . The final launch , with P35 - 4 occurred on 26 April 1963 , and like the first flight , it failed to reach orbit . What entity does 'scout x-2m' has the relation 'subclass of' with?
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[A]:
launch vehicle