blues

blues /ˈbluːz/ noun
blues
/ˈbluːz/
noun
Britannica Dictionary definition of BLUES
1 
the blues : a feeling of sadness or depression
2 
[noncount] : a style of music that was created by African-Americans in the southern U.S. and that often expresses feelings of sadness — often used with the — often used before another noun — sometimes used figuratively
— see also rhythm and blues

— bluesy

/ˈbluːzi/ adjective bluesier; bluesiest