Let's take another look at the 70's:
*Los Jaivas (Chile, since 1963). Folk, rock and prog. These two moving and famous songs are
Todos juntos ("
All Together", 1972) and
Mira niñita ("
Look, my Little Girl", 1972).
*Módulos (Spain, 1969-1979). Prog and symphonic rock.
Todo tiene su fin ("
Everything has its End", 1969) and
Realidad ("
Reality", 1970).
*Lone Star (Spain, 1966-1977). Many styles (rock & roll, prog, blues rock, pop-rock, hard rock, etc.).
Adelante ("
Let's Go!", 1973) and
Pájaro de fuego ("
Firebird", 1972).