He enjoyed the concert, lost in the music.
Meaning: This means he liked the live music show and was fully absorbed in it.
Choice of Words: Enjoy means to take pleasure in something. Concert is a live performance of music. Lost means unable to find your way or to be unaware of your surroundings. Music is a combination of sounds that is pleasing to the ear. When you put them together, it means he took pleasure in the live music performance and was so engrossed in it that he was unaware of his surroundings.
Alternative Expressions
Related Expressions