Could have Priss come to Sylia's attention by having her attempt a confrontation with Mason when Sylia is present. Say that Mason and Sylia are both attending the same reception or whatever (some social thing that shows they move in the same circles, Mason as a senior (but not top tier) member of Genom while Sylia is a significant local figure). Mason slimes up to her, Sylia keeps her temper and Mason leaves. Possibly Sylia has a brief flashback or conversation with someone as she watches Mason's limo depart... but she then sees someone on a bike heading after the limo.
Cut to Priss attempting a hot-headed interception. This goes badly, she's lost her bike, she's wounded, staggering away through an alleyway... Sylia's Mercedes pulls up and opens the door. Priss hops in, pulls a gun on Sylia and then sees that Sylia already has her own gun out and aimed at her. Sylia asks "do you want to argue or leave?" Priss sighs, her gun's empty already. They drive and talk - why did Priss go after Mason, why does Sylia care/help Priss...?
Regarding Priss' music, maybe her boyfriend was headlining the act and it was his side-gig outside the gang. Partway through Act 2 she's still frustrated, looking for a way to vent. She slams in one of his old demo tapes to listen to (or MP3 or whatever) and starts spilling out what she's thinking and it slips into her singing it (mad machine maybe?). Finally she's sitting exhausted, vented, one of the other Sabers (Nene or Linna) walks past and asks what band she was playing (not realising it was Priss singing). Priss sarcastically asks if they think it was 'nice' (implying soft), and the response was "No, it sounded raw. And powerful." Which is a 'huh' moment for Priss. And this sets up that instead of Priss taking up her boyfriend's role as a gangleader, instead she takes up the path of music.
Cut to Priss attempting a hot-headed interception. This goes badly, she's lost her bike, she's wounded, staggering away through an alleyway... Sylia's Mercedes pulls up and opens the door. Priss hops in, pulls a gun on Sylia and then sees that Sylia already has her own gun out and aimed at her. Sylia asks "do you want to argue or leave?" Priss sighs, her gun's empty already. They drive and talk - why did Priss go after Mason, why does Sylia care/help Priss...?
Regarding Priss' music, maybe her boyfriend was headlining the act and it was his side-gig outside the gang. Partway through Act 2 she's still frustrated, looking for a way to vent. She slams in one of his old demo tapes to listen to (or MP3 or whatever) and starts spilling out what she's thinking and it slips into her singing it (mad machine maybe?). Finally she's sitting exhausted, vented, one of the other Sabers (Nene or Linna) walks past and asks what band she was playing (not realising it was Priss singing). Priss sarcastically asks if they think it was 'nice' (implying soft), and the response was "No, it sounded raw. And powerful." Which is a 'huh' moment for Priss. And this sets up that instead of Priss taking up her boyfriend's role as a gangleader, instead she takes up the path of music.