Love barbershop music.  It's normally performed by a quartet.
It's famous for it's ringing chords, produced by singing a combination of notes that are perfectly tuned.
One of the things I really love about the sound is the harmony and the use of what's called "snakes" or "swipes".
It was developed by African Americans in the late nineteenth century.
So many things were influenced by African-Americans.  They constitute 1/3 largest racial and ethnic group in the United States.
When Edison's phonograph grew in popularity, the music genre did too.
Edison is described as one of the greatest American inventors.  He had an interesting middle name of Alva.
That is an interesting middle name. My grandfathers' middle name was Aden.
Surnames by country
Surname conventions and laws vary around the world. This article gives an overview of surnames around the world.
Spanish-speaking countries.
Spanish-speaking countries Argentina.
In Argentina, normally only one family name, the father's paternal family name, is used and registered, as in English-speaking countries. However, it is possible to use both the paternal and maternal name. For example, if "Ana Laura Melachenko" and "Emanuel Darío Guerrero" had a daughter named "Adabel
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,