A tour itinerary could give performers and crew a consistent view of travel, load-in, soundcheck and show times. Each date should link to the correct venue contact and the latest confirmed instructions.
Bookings, private room arrangements and travel documents need different access levels. A change should identify what was updated and who confirmed it. Offline access may be useful, but users must be able to recognise an older downloaded itinerary.
Build around a sample run of dates, including an overnight journey and a changed hotel. Test time-zone handling where relevant and avoid publishing private contact details in public schedules. A practical first version could centralise confirmed arrangements while allowing the tour manager to flag details still awaiting agreement.
Related reading: ListnIN: How a Live Music Streaming App Connects Artists and Fans.