Wiktionary
n. (context music English) A group of four musicians who sing :w:barbershop music. Usually contains high and lead tenors, baritone and bass
WordNet
n. an unaccompanied quartet of (usually male) voices singing sentimental songs in four-part harmony
Wikipedia
A barbershop quartet is a quartet of singers who sing music in the barbershop genre. It consists of a lead, the vocal part which generally carries the tune; a bass, the part which provides the bass line to the melody; a tenor, the part which harmonizes above the lead; and a baritone, the part that completes the chord. The baritone can sing either above or below the lead singer.
Quartets can be male or female, but are generally not mixed. A female barbershop quartet may be referred to as a Sweet Adelines Quartet, and the vocal parts have the same labels, since the roles perform similar functions in the quartet even though the vocal ranges are different.
The Barber Shop Quartet in New York’s Harlem neighborhood was founded in 2007 as an outreach program of the Men’s Ministry at Abyssinian Baptist Church. The Barber Shop Quartet provides free men’s health screenings for hypertension, diabetes, prostate cancer and colon cancer.
Abyssinian Baptist Church, Harlem’s largest church with more than 4,000 congregants, initially partnered with Harlem Hospital Center and St. Luke’s Roosevelt Hospital and received additional funding from the New York City Department of Health and Mental Hygiene to implement this program. Other initiating partners include the Ralph Lauren Center for Cancer Care and Prevention and Mount Sinai Hospital.
The Barber Shop Quartet works with local hospitals to provide doctors, nurses, and other volunteers to free health education and screenings for African American men for diabetes, hypertension, and prostate and colon cancers. Mobile medical units parked at participating barbershops throughout Harlem were the catalyst for the program’s name. The Barber Shop Quartet also grants free follow-up care to those whose screenings have detected a health issue.
Streamlined in 2008, current partners of The Barber Shop Quartet include St. Luke's Roosevelt Hospital, New York University School of Medicine/Center for Healthful Behavior Change, the Albert Einstein College of Medicine Department of Epidemiology and Population Health, Division of Community Collaboration and Implementation Science, and the Albert Einstein Cancer Center, Cancer Prevention & Control Research Program.
Usage examples of "barbershop quartet".
The barbershop quartet on the airplane was singing 'Wait Till the Sun Shines, Nelly,' when the plane smacked into the top of Sugarbush Mountain in Vermont.
The absurdity of the link in Billy's mind between the four guards and the barbershop quartet is what makes it so moving.
From the church that was packed to the gills, to the town hall that wasn't much different, to Flash's food, to live music from a jazz band, a string trio, and a barbershop quartet, to the strobe lights of no less than four self-appointed photographers and two videographers, to smiles and wishes and handshakes that never stopped coming--he had never in his life been the recipient of so much sheer goodwill, and all because of the woman at his side.
The crowd of pilgrims are laughing and boo-boo-booming like frogs in a barbershop quartet contest.
I've shared beds with men before, and with women, and wet babies, and cats who demand most of the bed, and (once) with a barbershop quartet.