IN: The Beatles were an English rock band, formed in Liverpool in 1960. With members John Lennon, Paul McCartney, George Harrison and Ringo Starr, they became widely regarded as the foremost and most influential act of the rock era. In the early 1960s, their enormous popularity first emerged as "Beatlemania", but as the group's music grew in sophistication, led by primary songwriters Lennon and McCartney, the band were integral to pop music's evolution into an art form and to the development of the counterculture of the 1960s. Their continued commercial and critical success assisted many cultural movements--including a shift from American artists' global dominance of rock and roll to British acts (British Invasion), the proliferation of young musicians in the 1960s who formed new bands, the album as the dominant form of record consumption over singles, the term "Beatlesque" used to describe similar-sounding artists, and several fashion trends.

Progressive rock (or art rock) grew out of the classically-minded strains of British psychedelia. In 1966, the level of social and artistic correspondence among British and American rock musicians dramatically accelerated for bands like the Beatles, the Beach Boys and the Byrds who fused elements of cultivated music with the vernacular traditions of rock. According to Everett, the Beatles' "experimental timbres, rhythms, tonal structures, and poetic texts" on their albums Rubber Soul and Revolver "encouraged a legion of young bands that were to create progressive rock in the early 1970s". Academics Paul Hegarty and Martin Halliwell identify the Beatles "not merely as precursors of prog but as essential developments of progressiveness in its early days". After the release of Rubber Soul, many "baroque-rock" works would soon appear, particularly due to its track "In My Life". Citing a quantitative study of tempos in music from the era, musicologist Walter Everett identifies Rubber Soul as a work that was "made more to be thought about than danced to", and an album that "began a far-reaching trend" in its slowing-down of the tempos typically used in pop and rock music. Although the Kinks, the Yardbirds and the Beatles themselves (with "Ticket To Ride") had incorporated droning guitars to mimic the qualities of the sitar, Rubber Soul's "Norwegian Wood (This Bird Has Flown)" is generally credited as sparking a musical craze for the sound of the instrument in the mid-1960s -- a trend which would later be associated with the growth of raga rock, Indian rock, and the essence of psychedelic rock. In terms of bridging the relationship between music and hallucinogens, the Beatles and the Beach Boys were the most pivotal. Revolver ensured that psychedelic pop emerged from its underground roots and into the mainstream. Author Carys Wyn Jones locates Sgt. Pepper's, along with Pet Sounds, to the beginning of art rock. Both albums are largely viewed as beginnings in the progressive rock genre due to their lyrical unity, extended structure, complexity, eclecticism, experimentalism and influences derived from classical music forms. For several years following Sgt. Pepper's release, straightforward rock and roll was supplanted by a growing interest in extended form. Several of the English psychedelic bands who followed in the wake of the Beatles' Sgt. Pepper's developed characteristics of the Beatles' music (specifically their classical influence) further than either the Beatles or contemporaneous West Coast psychedelic bands. AllMusic states that the first wave of art rock musicians were inspired by Sgt. Pepper's and believed that for rock music to grow artistically, they should incorporate elements of European and classical music to the genre.
QUESTION: What is progressiveness?
IN: Timmons was born in Philadelphia, Pennsylvania, the son of a minister. He had a sister, Eleanor. Both of his parents, and several aunts and uncles, played the piano. From an early age Timmons studied music with an uncle, Robert Habershaw, who also taught McCoy Tyner.

Timmons left Blakey for the second time in June 1961, encouraged by the success of his compositions, including jukebox plays of "Dat Dere", which Oscar Brown had recorded after adding lyrics. Timmons then formed his own bands, initially with Ron Carter on bass and Tootie Heath on drums. They toured around the US, including the West Coast, but played most in and around New York. In the initial stages of this trio, Timmons liked the group sounds of the trios led by Red Garland and Ahmad Jamal. According to Tootie Heath, Timmons was at the peak of his fame at that point, but was addicted to heroin, and used a lot of the money that the band was paid maintaining his habit. In 1963 Timmons' playing, with Lewis Powers on bass and Ron McCurdy on drums, was described by a Washington Post reviewer as "flexible and adventuresome [...] Glossing over everything is an undeniable sheen of church music and spirituals." In 1965 the same reviewer commented that Timmons was employing musicians who were of much lower ability: "Timmons lacks a certain passion but I wonder if this is not the fault of his sidemen." Timmons started playing vibes in the mid-1960s. He occasionally played organ, but recorded only one track on that instrument - a 1964 version of "Moanin'" on From the Bottom. Recordings as a leader continued, usually as part of a trio or quartet, but, after joining Milestone Records around 1967, Timmons' album Got to Get It! featured him as part of a nonet, playing arrangements by Tom McIntosh. Timmons' career declined quickly in the 1960s, in part because of drug abuse and alcoholism and partly as a result of frustration at being typecast as a composer and player of seemingly simple pieces of music. In 1968 he made his second, final, recording for Milestone, Do You Know the Way? In the following year he played in a quartet led by Sonny Red, with Dexter Gordon on one of the saxophonist's temporary returns to the US from Europe, and in a trio backing vocalist Etta Jones. Timmons continued to play in the early 1970s, mostly in small groups or in combination with other pianists, and mainly in the New York area. According to saxophonist Jimmy Heath, Timmons joined Clark Terry's big band for a tour of Europe in 1974. He was unwell and drank on the plane to Sweden, and fell while drinking at the bar before the band's first concert, in Malmo. Susceptible to blood clotting, he was flown back to the US. On March 1, 1974, he died from cirrhosis, at the age of 38, at St Vincent's Hospital in New York. He had been in hospital for a month. He was buried in Philadelphia, and was survived by his wife, Estelle, and son, also Bobby.
QUESTION:
Did he have drug problems