Unplugged Instruments, a Silicon Valley start-up that was making a next-generation electronic guitar, also closed after failing to raise money this year.

WSJ: Forget the Web, Valley Start-Ups Get Real

Electronic Arts' Guitar Hero spinoff (created by Harmonix, the original makers of Guitar Hero), Rock Band is a great big, expensive music videogame that will take up serious room in your house.

CNN: GameTap Guide: The top five 'T' games of 2007

S. Bach for inspiration but unique vocal stylings that resemble rhythmic and melodic chanting accompany the intricate acoustic guitar interludes, electronic elements, and light percussion.

NPR: Twi The Humble Feather: 'Higher Than The End'

The "mad genius" concocts music that is as mesmerizing as it is odd and eclectic, running the gamut from electronic trip-hop to guitar heavy arena rock and earnest, acoustic singer-songwriter work.

NPR: Willie Nelson, Wynton Marsalis Team Up

Band members Kevin May (piano, lead vocals) and Mick Lynch (acoustic guitar, ukulele, stomp-board and vocals) strip away the electronic elements in this Mountain Stage performance, spotlighting their crisp, brotherly-like harmony and memorable melodies.

NPR: Guggenheim Grotto On Mountain Stage