Complex sentence: Avellaneda Blues was published in the acclaimed "Manal" album of 1970, shortly after it appeared like opening song of the double compilation album "Manal" of 1973.
Split into simpler sentences: Avellaneda Blues was published in the acclaimed "Manal" album of 1970. Shortly after, it appeared as the opening song of the double compilation album "Manal" of 1973.