Some context: Carlos Santana  audio  (born July 20, 1947) is a Mexican and American musician who first became famous in the late 1960s and early 1970s with his band, Santana, which pioneered a fusion of rock and Latin American jazz. The band's sound featured his melodic, blues-based guitar lines set against Latin and African rhythms featuring percussion instruments such as timbales and congas not generally heard in rock music. Santana continued to work in these forms over the following decades. He experienced a resurgence of popularity and critical acclaim in the late 1990s.
Carlos Santana's distinctive guitar tone is produced by PRS Santana signature guitars plugged into multiple amplifiers. The amps consist of a Mesa Boogie Mark I, Dumble Overdrive Reverb and more recently a Bludotone amplifier. Santana compares the tonal qualities of each amplifier to that of a singer producing head/nasal tones, chest tones, and belly tones. A three-way amp switcher is employed on Carlos's pedal board to enable him to switch between amps. Often the unique tones of each amplifier are blended together, complementing each other producing a richer tone.  He also put the "Boogie" in Mesa Boogie. Santana is credited with coining the popular Mesa amplifier name when he tried one and exclaimed, "That little thing really Boogies!"  Specifically, Santana combines a Mesa/Boogie Mark I head running through a Boogie cabinet with Altec 417-8H (or recently JBL E120s) speakers, and a Dumble Overdrive Reverb and/or a Dumble Overdrive Special running through a Brown or Marshall 4x12 cabinet with Celestion G12M "Greenback" speakers, depending on the desired sound. Shure KSM-32 microphones are used to pick up the sound, going to the PA. Additionally, a Fender Cyber-Twin Amp is mostly used at home.  During his early career Santana used a GMT transistor amplifier stack and a silverface Fender Twin. The GMT 226A rig was used at the Woodstock concert as well as during recording Santana's debut album. During this era Santana had also begun to use the Fender Twin, which was also used on the debut and proceedingly at the recording sessions of Abraxas.
What do the amplifiers do for Carlos Santana?
A: Santana compares the tonal qualities of each amplifier to that of a singer producing head/nasal tones, chest tones, and belly tones.

Some context: The Beach Boys are an American rock band formed in Hawthorne, California, in 1961. The group's original lineup consisted of brothers Brian, Dennis, and Carl Wilson; their cousin Mike Love; and their friend Al Jardine. Distinguished by their vocal harmonies and early surf songs, they are one of the most influential acts of the rock era. The band drew on the music of jazz-based vocal groups, 1950s rock and roll, and black R&B to create their unique sound, and with Brian as composer, arranger, producer, and de facto leader, often incorporated classical or jazz elements and unconventional recording techniques in innovative ways.
Recorded in the wake of California Music's demise, a supergroup that would have involved Brian Wilson, Bruce Johnston, and record producer Terry Melcher, 15 Big Ones (1976) marked Brian's return as a major force in the group. The album included new songs by Brian, as well as cover versions of oldies such as "Rock and Roll Music", "Blueberry Hill", and "In the Still of the Night". "Rock and Roll Music" peaked at No. 5 in the U.S. Brian and Love's "It's O.K." was in the vein of their early sixties style, and was a moderate hit. The album was publicized by an August 1976 NBC-TV special, simply titled The Beach Boys. The special, produced by Saturday Night Live (SNL) creator Lorne Michaels, featured appearances by SNL cast members John Belushi and Dan Aykroyd.  The album was generally disliked by fans and critics upon release. During its sessions, Brian's production role was belittled as group members overdubbed and remixed tracks to fight against his desire for a rough, unfinished sound. Carl and Dennis disparaged the album to the press while Brian admitted, "[Undoubtedly] the new album is nothing too deep", but remained hopeful that their next release would be on par with the group's "Good Vibrations".  For the remainder of 1976 to early 1977, Brian spent his time making sporadic public appearances and producing the band's next album The Beach Boys Love You (1977), a quirky collection of 14 songs mostly written, arranged and produced by Brian. Brian later called Love You one of his favorite Beach Boys releases, saying that "That's when it all happened for me. That's where my heart lies." Jardine credited Carl and Dennis with having "the most to do with that album ... [they were] paying tribute to their brother." Love You peaked at No. 28 in the UK and No. 53 in the US and developed a cult following; regarded as one of the band's best albums by fans and critics alike, and an early work of synthpop.  Referring to "naysayers" of the album, the underground fanzine Scram wrote, "Fuck [them] ... [the album showcases] a truly original mix of humor and sadness. The original numbers always dance just a step away from the cliche, dealing with simple lyrical themes that make you wonder why they had never been explored before." The A.V. Club - considering the album in "the same vein" as Tonight's the Night (1975), Pussy Cats (1974), The Madcap Laughs (1970), and Barrett (1970) - described Love You as: "something almost desperately optimistic ... Wilson sings frayed songs about roller-skating, road-tripping, and Johnny Carson - like a frazzled man sitting in a corner chanting 'calm blue ocean' over and over. It's a beautiful, noisy, funny, heartbreaking work of art - one not for everybody, yet vital for anyone who wants to understand Wilson's overall worldview."
What were the other singles?
A:
"It's O.K." was in the vein of their early sixties style, and was a moderate hit.