Dennis, the group "couldn't agree on enough" with regards to the songs that they had stockpiled. Dennis said in January 1976, "We have a lot of stuff in the can we could have put together and released, but it just wasn't that. It's always left up to the writer of each song as to what will happen to it ... It takes a lot of fun out of the creativity to have to release, release." He reported that the group had planned to issue an album of oldies, and that the other albums may "take the form of a double album of all-new material that stretches from hard rock 'n' roll to these wordless vocals we've been doing that sound like the Vienna Boys Choir." Characteristics 15 Big Ones is distinguished for its use of Moog and ARP synthesizers, played by Wilson himself, signaling a more electronic-heavy sound compared to his past productions. Mankey surmised that Wilson employed synthesizers "to fake string parts ... and not have to worry about anything else. He was in there to play the part and get out." In the assessment of biographer Peter Ames Carlin, one of the "more distressing" characteristics of the recordings is the quality of Wilson's singing. Carlin writes that Wilson, who once possessed "a powerful but tender falsetto ... now sang in a baritone croak." In his 2016 memoir, I Am Brian Wilson, it is stated that he suffered from a bout of laryngitis during the sessions, adding that his hoarse voice on the album was not his "normal voice ... It was an assumed voice." Disagreements Following two days in the studio, during which they recorded "Palisades Park" and "Blueberry Hill", the sessions temporarily halted due to disagreements regarding the album's direction. According to Brian, "I started to change my mind [about producing the album], and they said, 'Come on, come on, Brian. You can't stop.'" Mankey said, "It was really tense in the studio. Brian would come in around nine or ten in the morning. One day, they would get something done, and the next day they would do nothing except fight." Group meetings were supervised by Landy, and according to biographer Keith Badman, discussions over each track for the record lasted up to eight hours. Band road manager Rick Nelson acknowledged that Landy had attempted to exert unwelcome artistic control over the group. Landy remarked in a