This double bill pairs two extraordinary teenage artists. Only 18, bluegrass phenomenon Sarah Jarosz is proficient on mandolin, clawhammer banjo, guitar, piano, and she also has a fine, supple singing voice.

Her astounding young trio plays one half of this program while 19-year old Canadian fiddle sensation Sierra Noble, with her trio, amazes audiences with exceptional instrumentals, beautifully innovative vocals, and an infectious down-to-earth charm.