Hello
I'm interested in whether can I play music from a given time with music shield 2 and arduino. And if I can, how, just tell me function from the library which takes time argument to start playing from that time, or some other source to manage do like above.
I'm interested in whether can I play music from a given time
Do you mean like music from the 70s? Sure, that is possible.
If you mean AT a given time, that depends on whether you know the time.
And if I can, how, just tell me function from the library which takes time argument to start playing from that time
You can't tell that device to start playing music at a given time. It doesn't know what time it is. You can call a function to start playing music at a given time, if you add an RTC so you know what time it is.