here's a few i will probably go to.. best of all, it's FREE!
there are others but i cannot go 
Blues
Men
Dirty, funky, electric, old-school, we'ver got it all! These are
names that will send shivers down your spine - with pleasure! Paul
Ponnudorai, Zul (Tania) and Trevor Jalla (ublues), will each take
centrestage before ending with a massive three-way blues guitar
jam. A must for all guitar enthusiasts.
Date: March 12
Time: 7:30pm, 8pm, 10pm, 10:45pm
Venue: Nokia Music Station (Esplanade Outdoor
Theater
Lounge
Around
Aya Sekine, Maya Nova and coll.eff (collective effervescence) show
what it is to chill out with their out-of-the-box jazz. Bulgarian
jazz vocalist, Maya Nova, joins highly proficient and experimental
pianist, Aya Sekine, is a riveting performance. Led by vocalist, Jo
Dong, coll.eff offers an alternative experience to standard club
fare as they explore nujazz, jazzy drum n' bass and bossa nova
sounds.
Date: March 13
Time: 6:30pm, 9pm
Venue: Concourse
Soul
Amazing
Let two of Singapore's most charming vocalists let you in on rhythm
and groove. Performing together as a duet for the first time are
local babes, Vanessa Fernandez and Michaela Therese. Groove along
with them as they do their own interpretations of old and new hits
from Ella Fitzgerald to Oasis.
Date: March 13
Time: 7:30pm, 8:45pm, 10pm
Venue: Nokia Music Station
Jazz
Fingers
Consider this a showcase of Singapore's music titans. Jazz Fingers
boasts the talent of Rick Smith (jazz guitar), Christy Smith
(double bass), Paul Ponnudorai (guitar), Andrew Lim (guitar), Mei
Sheum (keyboard) and Nial Djuliarso (piano)
Date: March 14 & 15
Time: 6:30pm, 9pm
Venue: Concourse
Jazzology
Farid "Mr. Gambus" Ali is one of the finest jazz guitarists in the
region. Back in Singapore specially for the Mosaic Music Festival,
he kicks off the evening performing with his band, and closes the
night in a highly pumped jam with his friends from Good Omens in a
soul-shaking performance.
Date: March 15
Time: 7:30pm, 8:45pm, 10pm
Venue: Nokia Music Station
Easy
Indie
Catch this showcase of downscale indie music from non-mainstream
indie artist such as Set for Glory and Vertical Rush. The former is
a young band that is making quite a buzz in the Singapore music
scene with their energetic stage performances and passion for
music, while the letter is a five-member outfit whose music is
described to be a mesh and tinge of bands like Goo Goo Dolls, U2
and Switchfoot.
Date: March 16
Time: 6:30pm, 9pm
Venue: Concourse
