No Limits Challenge

The Zepparella axe-slinger emerged triumphant after her acoustic original, Venice, beat out Helen Ibe's mashup of Classical Gas and Stevie Wonder's Superstition

Menn and Ibe both bring their A-game with these stellar, technically demanding pieces. Take them in with GW's editors, and vote for your favorite

With a stunning original and creative mash-up, both of these guitarists bring their A-game in these performances. Vote for your favorite

Menn's terrific acoustic take on Weezer's Buddy Holly edged out Sophie Burrell's spirited and skillful unplugged version of Kaiser Chiefs' Ruby

In this No Limits Challenge semifinal matchup, Menn and Burrell add some unplugged flash to these hook-filled classics – examine them further with GW's editors

This round of the No Limits Challenge competition sees two hard-riffing power-pop hits receive Martin-powered makeovers

Ibe's technically rich acoustic blues original beat out R.J. Ronquillo's spunky take on Stevie Ray Vaughan's Rude Mood

These performances demonstrate the bluesier capabilities of Martin's SC line – examine them further with GW's editors

The first semifinal round in Martin's No Limits Challenge is all about the blues

Menn’s outside-the-box take on Alice in Chains' Man in the Box beat out Jay Leonard J's funky unplugged version of Red Hot Chili Peppers' Give It Away