Maestro Salgán (b.1916) was a musicians' musician until recent times, because, unfortunately, the most productive years of his carrier happen to be during the years when Argentine tango experienced decline.
ToDoTango - a comprehensive source of Argentine tango music, poetry and history
Robert Farris
Thompson,
Tango: The Art History of Love
(the whole chapter "Horacio Salgán:
one-man conservatory")
Quinteto Real (an earlier formation, I included the tangos from
Nuestros 30 Mejores Tangos
) and Nuevo
Quinteto Real are Salgan's bands.