Unlike purist techno, underground electro has not yet had its moment in the sun. This has a lot to do with the form not being as dancefloor-friendly as techno and lacking a globally-recognised platform like Berghain. As if to prove the first part of that statement, Delta Funktionen delivers a stunning, pounding techno version of ‘Early Morning’. The original is more impressive though, featuring an irresistible interplay between melodies and spiralling acid lines. ’Bubble Theory’ inhabits the same cold funk territory as Hacker and on ‘Expanded Consciousness’, Komarken Electronics strays into E.R.P. territory — mean bass juxtaposed with heavenly synths.