Depends on your raid group's overall DPS and people's gearing preferences (ie. the amount of SKSP someone has) as well as the group composition. Having a NIN of course helps with the TP a bit.

That being said, I perma-Selene everything in general. When everyone but the WHM in your raid group are doing 300+ DPS on all turns but T13, the encounters become so goddamn short you don't need to do long TP songs anyway. T12 and T13 have some forced down time for TP ticks anyway (T12: P2 to P3 transition and the plume phases. T13: each Megaflare Dive set and Teraflare countdown - the latter becomes a full-fledged picnic).

TP songs to keep the ball rolling don't cut down the BRD's DPS enough for Selene to not be worth it. My raiding group doesn't have a NIN in it.