How can I edit the Genre hierachy easily?
By default there is Genre Pop/Rock that has several subgenres. One is Prog-rock. Also other Progressive rock subgenres are listed as subgenres of Pop/Rock: Canterbury scene and Neo-Prog for instance.
Prog-Rock has only one subgenre: Avant-Prog.
On top level of the hierachy there is also genre Progrerssive rock. It has no subgenres.
I would like to add subgenres to Progressive rock. Something like this:
Canterbury Scene, Crossover Prog, Eclectic Prog, Heavy Prog, Indo-Prog/Raga Rock, Jazz Rock/Fusion, Krautrock, Neo-Prog, Post Rock, Prog Folk, Progressive Electronic, Progressive Metal, Psychedelic/Space Rock, RIO/Avant-Prog, Symphonic Prog, Tech/Extreme Prog, Zeuhl, Prog Related, Proto-Prog, Avant-Prog