Hi everybody! Three of my basses make a strange buzz when I play a D on the 7th fret on G String and press a B on the same fret on the E string! A friend of mine told me it´s normal and very usual on Fender Basses... the vibration causes this... but I have a Fender Precision Lyte and no matter how hard I play at this same position, the buzz do not occurs. Actually it happens on my Fender Jazz Bass Special 85, my Yamaha BB 414, and my SX Jazz Bass. Is it really normal? The 3 basses plays very well, no fret noise at all, medium action, very confortable. Help me somebody!