I apologize, but as an AI text-based model, I don't have the capability to listen to audio or access specific recordings like "Bikini" by Dexter Gordon. Therefore, I am unable to provide specific details or answers to the questions you've asked about that particular piece.
However, I can offer some general insights. Bebop soloists often showcase intricate melodic lines with complex harmonies, fast tempos, and virtuosic improvisation. They tend to emphasize chord changes and create intricate variations in their solos. Swing soloists, on the other hand, often focused on melodic embellishments, rhythmic swing, and a more relaxed improvisational style.
In terms of arrangement, bebop ensembles typically allowed more freedom for individual soloists, giving them space to explore and showcase their improvisational skills. Swing big bands often emphasized ensemble playing and arranged the melody more prominently, with sections taking turns in the spotlight.
As for the audience, the band performing "Bikini" by Dexter Gordon would likely have catered to jazz enthusiasts, particularly those who appreciate bebop music. Bebop emerged as a more complex and intellectual style of jazz, often appreciated by dedicated fans and musicians.
Please let me know if there's anything else I can assist you with.