Is the trainer flute worth it? Oh hell yes! I finally got one, so here is the comparison for anyone who also wants to know the difference between calling your mount with
BDO Fast Travel (Black Desert Online) | GrumpyG
Celestial horse whistle : r/blackdesertonline
Black Desert's latest patch kicks off a new summer event and tweaks guild skills | Massively Overpowered
Game Play] Upgrading Trainer´s Flute to Celestial Horn | Black Desert NA/EU/OC