any reputable music schools to be checked out, for lessons on contemporary guitar (metal, jazz) and piano learning (jazz and classical)?

try ICOM- international college of music

oh, forgot to specify, somethin' on a part-time basis

u know, for working dudes

On the same note, what's the take on Yamaha Music School, the one opposite of Kelana Seafood Restaurant along the LDP?

I can semi-vouch for Music Makers in Bangsar.
They have a very good program, especially for younger students.

But they had this thing where the student will have to play along with an in-house band comprised of other students.....
Was tempted to join..... but realized that I already have a good teacher and I don't think the rest of the teachers and students would appreciate me playing Black Label Society, Children of Bodom and Ozzy songs during their band practice....

Overall good school with good teachers. Just not for a Metal head like me.

where is this music makers place?

Music Makers in Bangsar Baru.... above Guardian Pharmacy