i went there last december on a holiday trip and just had to go to ochanomizu after asking my hotel where the most guitar shops are located. firstly, there are around 7 shops selling many many items, second hand and first. there is ishibashi there, selling rickenbackers and stingrays. there are shops selling so many effects and lakland basses. effects range from boss to some zvex pedals (fuzz factory). MIJ fenders cost super cheap, around SGD500 only. hope this helps, you will definitely find what you want i guess.