Arena week and club week are different diaries
Cardiff can host a full arena run and, the same month, a club bill you will remember longer. Log them as separate gigs. A gig guide that flattens both into “Cardiff live music” is a brochure.
Radar stores venue and city together, so Utilita Arena Cardiff does not get mixed up with a student union show. Find is where upcoming dates land. The diary is where attended dates stay.
Welsh tours deserve their own line
If you also go to Swansea or Bristol, do not merge those nights into one “south” entry. Each room gets a card: artist, date, who you travelled with.
Setlists help when support bills change between Cardiff and the next city. Attach the list to the gig you saw, not to the tour announcement.
Start with the shows you can prove
Ticket emails, wristbands, and photos of the room are enough to backfill. Guessed years create duplicate gigs. Confirm the date, then log it once.
Open the Cardiff city page when you want listings. Open your diary when you want the nights you already did.