Progeria, also known as Hutchinson-Gilford progeria syndrome (HGPS), is a rare genetic condition that causes a child's body to age fast.Most kids with progeria do not live past the age of 13. The disease affects both sexes and all races equally.rogeria, also known as Hutchinson-Gilford progeria syndrome (HGPS), is a rare genetic condition that causes a child's body to age fast.
Pentatonix is made up of Avi Kaplan, a most distinctive bass; Kevin Olusola, the vocal percussionist or the beatboxer; Kirstie Maldonado, the mezzo soprano and only girl in the line-up; Mitch Grassi who does both tenor and counter-tenor voices; and Scott Hoying, the baritone who sings lead most of the time.
One of the first things a new musician learns is that instruments are categorized by family. That is, instruments with similar features are grouped together in a family of instruments similar to them.Families of musical instruments may look similar, or they may produce sound in a similar fashion. Musical families include percussion, brass, woodwind and string.ne of the first things a new musician learns is that instruments are categorized by family. That is, instruments with similar features are grouped together in a family of instruments similar to them.