This is more like tech house. You could check out Alexander Kowalski he is compared to Technasia sometimes. Two other of my personal favorites when it comes to that genre are Theorem and Aril Brikha.
I read once that Ed Wynne (guitarist of Ozric Tentacles) comes up with his own scales sometimes. And other times they are influenced by eastern/folksy scales.
Downtempo (rather no-tempo-at-all): Steve Roach - Back To Life
Bvdub – Serenity
Steve Roach & Dirk Serries - Low Volume Music
Ishvara – Under A Hexagon Sky
Thomas Köner – Novaya Zemlya
Global Systems Silently Moving - Altering The Air Milieu - A Warm Wooden Hollow Bvdub - I Remember (Translations Of Mørketid) Bvdub - Serenity Bvdub - Songs For A Friend I Left Behind Bvdub - Then Joel Tammik - Eluline Monolake - Gobi The Desert EP