Complex sentence: The Neptunes sound was first heard on Noreaga's 1998 track "Superthug", although not their first production, the song made it officially known as "The Neptunes Sound".
Split into simpler sentences: The Neptunes sound was first heard on Noreaga's 1998 track "Superthug". Although not their first production, the song became known as an example for the "Neptunes Sound".