Diminished Scale: Half-Step, Whole Step (also known as Symmetric Diminished). Learn this scale by degree, sound and feel. Learn how to apply it in a Funky Groove musical example. Guitar: Ibanez AZ Custom. Lehle P-Split. Fender Pro Reverb Amps (2). D’Addario Strings. Pickboy 1 mm TF Signature. BOSS RC-3 Loop Station with BOSS Katana 50 Amp.