❶ Concepts
Song
Each song contains many different tracks of different instruments. You can play one instrument during one game round.
Instruments
Roughly, the instruments are divided into three categories: String, Key, and Percussion. Different instruments of the same category will have same way of game play with different background, icons, etc.
Synchronization
After each song, you will get a Synchronization ranging from -100% to 200%. It is calculated base on the combos and precision of your performance.
Rank
This game is the first stage of the game "Musical!" so it will have a minimal rank feature to make it more socialized. You can compare the score and synchronization for a specific song or in total.

❷ Game Play
Registering
When you first enter the game, you are required to enter a name. The system will create a new account according to the name and assign a unique ID to the user. The name is not necessarily unique.
Menu
The selection of song is fairly simple, you only has to scroll over all the songs or just search by the name, difficulty, or category.
Gaming
There are currently three kinds of game play planed. The string, key, and percussion instruments have three different button layout and scoring scheme.