What is the origin of 'sleep tight'?
Read moreOne of the mysteries of the English language finally explained.
Definition of blues-rock in English:
blues-rock
noun
Music combining elements of blues and rock, specifically a style of music characterized by blues-based harmonic progressions, typically played at fast tempos on amplified instruments (especially the electric guitar); frequently attributive.
Origin
1960s; earliest use found in Billboard.
