You think I can develop my child to become a music lover if I give her toys like a piano, xylophone, guitar etc. asap?

If the parents are musician their kids are likely to incline in music too as the influence is larger than non musical background parents. Normally young kids love music, you can try to switch on some music and play instruments with him. For me, I find that my boy likes string instruments like guitar and violin a lot. We bought him a ukulele and a toy guitar and he has been playing with it and pretend to sing for about 6 months and the interests are still strong. We occasionally let him watch people playing live music and he likes it too. When he grows older we will send him for voilin class since he has shown interests in it.