Hi This is Vishva Prakash from Nainital ,Uttrakhand,(India). I have joined IGT almost 1 year back. but that time i had not started to play guitar. I have now practised guitar for 3 months. I know all basic chords 3 minor shapes 3 major shapes. 7 & 9 chords. I m practising barre chords this time. I need your precious advice from time to time so please keep helping me!!! Can any body tell me what does hammering in guitar means??????????