Music in my ears.

Last night, the moment my head come in contact with my pillow and my mind slide into the silence before sleep comes in, I heard a distinct flow of music if I lean on into it and listen. If I loose focus and let other noises disrupt, the music is gone but once I tune my ears/lean into it, I can hear it clearly. Intuitively I wondered, is this the music of angels/heaven? I didn't get an answer. Need to ask God then listen again tonight.