Since a lot of these tracks are coming from faded, worn scrolls that are being refurbished by crafters then I guess it could be plausible? Seems to me it is just "Hey I found an old music thing. Put it through your music box and see what it plays!" Audio playback devices were being made already. The Orchestron could just be a device made to play back this dusty old shit people keep finding around Eorzea.
Who knows what period they come from. Though I imagine Allagans were into some industrial.
Who knows what period they come from. Though I imagine Allagans were into some industrial.