Automation Music Server UPDATED

I need you to develop some software for me. I would like this software to be developed . I Need a to turn my Raspberry Pi - Any into a Music Server for a Coffee Shop. 1- A good music player with all the basics options a player should have (just like iTunes), Playlist, Shuffle of the Playlist, Repeat a Playlist, and so on... 2- Volume Standardization: All tracks must play at the same decibel level (Same Volume) 3- Automation: If there is a powerful outage, the device should start automatically when the power comes back and the music should start with the last playlist it was playing. Turn Off and Turn Back On at a specific time (example: turn off at nights). 4- Been able to program the playlist will be crucial, example: Monday - Playlist, Tuesday - Playlist 2, and so on.., Also been able to shuffle the days of those Playlist will be nice. There are special dates, for example: Christmas will have another Playlist, Halloween, Independence Day, and so on... 5- Been able to control from anywhere the device via a browser. Even add or remove files from the device and Playlist. 6- Important: Been able to install it in as many devices I want. 7- Google Music Integration (With the option to download the playlist and files to the internal memory and not depend on the internet) - If there is any change in Google Music Playlists, the service should automatically upgrade the files when there's an internet connection 8- Synology Integration - Been able to auto update files from the Synology NAS Server - ONEDRIVE or Dropbox. 9- DEVICES: RASPBERRY PI.