Accords regex
[A-G](b|#)?(maj|min|m|M|\+|-|dim|aug)?[0-9]*(sus)?[0-9]*(\/[A-G](b|#)?)?
Fragile Flamingo
[A-G](b|#)?(maj|min|m|M|\+|-|dim|aug)?[0-9]*(sus)?[0-9]*(\/[A-G](b|#)?)?