Melbourne Based Producer Mell Hall Arrives With A Stand-Out Debut Single ‘Knock Knock Feat. Thandi Phoenix', A Modern Take On The Classic Disco Genre. Drawing Inspiration from The Likes Of Horse Meat Disco and  Dimitri From Paris ‘Knock Knock’ Builds Suspense With An Uplifting Piano Melody, Before Exploding Into An Energetic And Vibrant Chorus Filled With A Bumping Bassline, Horns And Quintessential Disco Guitar Chords.