I prefer to listen to music using an earphone or headset because I can hear all the sounds clearly. I pick the smallest possible volume so I can hear the basses or additional sounds properly. It doesn't need to be too loud if it's closer to your ears.
I listen to music only through a headset and it is important to listen at the lowest volume so as not to damage the ears in the long run. I am awaiting a new pair of bluetooth headsets that I ordered online.