Songs vs music

It is true that songs and music communicate !
Yea.. Much of friends has showed how the song they liked give them impression and sometimes even give them comfort and help. For me, same like others, songs also give me comfort especially songs in church. When i was depress or my faith was disturbed, songs cheer me up.
However, we need different song in different mood. Not every song suit our mood in every moment even our favorite. For example, when depress we may need songs that can cheer or comfort us. On the other hand, when we were happy we may like some relax and lively songs.
Songs also communicate differently in different moment with different mood. You may get different impress followed your mood although it is the same song and the same lyric. However, most of the time we just install the first perception when we listen to the song.
Music is one of the important part for songs but can you get the meaning by just listening to the music??
yesterday night, i listen to radio. There was a band, a group of music lover showing their product, music they wrote. When the music played, i can't even get what what they trying to carry out, what the music says. Actually it is a dramatic music, you need to imagine when it played. A story about a planet that occupied by others and the music is telling the situation there. It is not easy to get the contain in a music rather than a song.
Music and songs communicate but everyone got the different while listening to it.

david