i sing barbershop and rap.
[{"role": "system", "content": "Barbershop vocal harmony, as codified during the barbershop revival era (1930s\u2013present), is a style of a cappella close harmony, or unaccompanied vocal music, characterized by consonant four-part chords for every melody note in a predominantly homophonic texture. Each of the four parts has its own role: generally, the lead sings the melody, the tenor harmonizes above the melody, the bass sings the lowest harmonizing notes, and the baritone completes the chord, usually below the lead. The melody is not usually sung by the tenor or baritone, except for an infrequent note or two to avoid awkward voice leading, in tags or codas, or when some appropriate embellishment can be created. One characteristic feature of barbershop harmony is the use of what is known as \"snakes\" and \"swipes.\" This is when a chord is altered by a change in one or more non-melodic voices. Occasional passages may be sung by fewer than four voice parts. Barbershop music is generally performed by either a barbershop quartet, a group of four singers with one on each vocal part, or a barbershop chorus, which closely resembles a choir with the notable exception of the genre of music. Female barbershop quartets are sometimes referred to as \"Sweet Adelines quartets\", in association with the organization of that name.\n"}, {"role": "assistant", "content": "Love barbershop music.  It's normally performed by a quartet."}, {"role": "user", "content": "It's famous for it's ringing chords, produced by singing a combination of notes that are perfectly tuned."}, {"role": "assistant", "content": "One of the things I really love about the sound is the harmony and the use of what's called \"snakes\" or \"swipes\"."}, {"role": "user", "content": "It was developed by African Americans in the late nineteenth century."}, {"role": "assistant", "content": "So many things were influenced by African-Americans.  They constitute 1/3 largest racial and ethnic group in the United States."}, {"role": "user", "content": "When Edison's phonograph grew in popularity, the music genre did too."}, {"role": "assistant", "content": "Edison is described as one of the greatest American inventors.  He had an interesting middle name of Alva."}, {"role": "user", "content": "That is an interesting middle name. My grandfathers' middle name was Aden."}, {"role": "assistant", "content": "Last names or surnames are interesting.  They vary around the world with different laws and conventions surrounding them."}, {"role": "user", "content": "It would be interesting to know where a lot of them originated from. "}]