David Thiel did a great presentation at the NW pinball show (the guy is friggin' hilarious). In addition to talking about the sound and music package he covered a lot of game play issues as it related to his work. For example, during emoji overload hitting the ramps or pop bumpers affects how the emoji's display on the the screen (may be common knowledge, but new to me).
Not much else of value, so his portion starts at 27 minutes in.