So according to the link, this idea has been floating around for 5 years and has last been updated in 2017. Not very encouraging!-- Sent from My IPhone. Please excuse any typos as well as the brevity of this message
hi NeilMacGregor, with your alphabetically ordered mobile Spotify playlists you can control most brands of DAC/AMPs through Spotify connect. E.g. Bluesound`s bluos (NAD etc.)is controllable with Spotify`s mobile app and many other high end DAC/AMPs can also be controlled from the mobile Spotify app. Which brand is your $3`500.- DAC/AMP? Which streamer are you using to feed your DAC/AMP? Maybe it`s controllable by your mobile Spotify app through Spotify connect.