A young man at an assisted-living home holds up a copy of the "World Falling Down" LP cover and asks one of the residents why he likes Cetera. The older resident replies that he does not like Cetera, but the ladies do, "and if you like the ladies, then by default, you like Cetera." Cetera's song "Restless Heart" from the "World Falling Down" album is heard playing in the background. Cetera has been given the honor of singing at professional sporting events, including: at least one time singing the national anthem at a World Series game, the fourth in the series between the Los Angeles Dodgers and the Oakland Athletics, in 1988 in Oakland; and at least three times for home team Chicago Cubs at Wrigley Field where he was guest conductor for "Take Me Out to the Ball Game" during the seventh-inning stretch in 2003, 2007, and again in 2009 – a duty of some importance according to Jim Oboikowitch, Cubs manager for game and event production, as quoted by Adam McCalvy: Whenever you come to Wrigley Field, you have two questions, ...Who is the starting pitcher? And who is singing the seventh-inning stretch? Cetera, a mainly self-taught musician who started playing bass guitar during his teen-age years, has said he's not the most "knowledgeable" bass player, that he doesn't "really" read music, and that his knowledge of chords "[doesn't] go much past 'Is it major or minor?' " He cites James Jamerson, Paul McCartney and Andy Fraser among his bass influences and says that he was aware of John Entwistle and Jack Bruce. Writing for "Bass Player" magazine, Stevie Glasgow says, " ... Peter Cetera's bass (and vocals) were key to Chicago's sound. His tasty 4-string style was forged through a deep knowledge of early rock & roll and R&B, bolstered by a keen melodic sense, astute rhythmic prowess, and a dexterous technique capable of issuing graded nuance and fervent "oomph" in equal measure." Jeff Coffey gained a new respect for Cetera's bass lines when he took over as Chicago's bass player (2016 - 2018). While the bass guitar has been less prominent in Cetera's solo career, it has begun to re-emerge in more recent years and he has started to play the instrument again. Cetera's first bass guitar was a Danelectro Shorthorn.