Changes.

Pop has several doors: classic pop, synth-pop, dance-pop, art pop, pop rock, indie pop and contemporary pop. These are overlapping listening routes, not a formula for the chords. Artists can also appear under Rock, Country or other sections as the library grows.

Country: classic country is a broad listening shelf; outlaw and alt-country describe overlapping approaches and scenes. ’90s country is an era, ranging from traditional roots to pop crossover. Start with a route, then follow the artist.

Emo lives under Rock. Our wave routes are approximate: 1st wave for the 1980s roots, 2nd for the 1990s, 3rd for the 2000s mainstream expansion, 4th for the revival, and 5th for a newer DIY generation. These labels are debated, and an artist’s whole catalog need not fit one period.

Screamo / skramz connects Emo and Hardcore. Histories use wave labels differently, so our shelves use eras: early ’90s, late ’90s/’00s, and revival & current. Searching “skramz” or “skrams” reaches the same artists.

Hardcore has its own section, linked to hardcore punk, post-hardcore, metalcore and screamo. Emocore means emotional hardcore and connects back to early emo. Djent sits under Metal, alongside progressive metal; the route emphasizes rhythm and guitar attack.

These shelves help you choose what to hear next. The studies are original exercises, and a chord progression alone does not define a genre.

Further reading: Emo’s overlapping waves · Screamo’s early scenes · Periphery on djent