| 摘要 |
PROBLEM TO BE SOLVED: To notify information which can be identified from a physical quantity of an environment in a musical instrument including a position where the musical instrument is arranged or its posture.SOLUTION: In a piano 10, a key sensor 151 detects key information, a pedal sensor 152 detects pedal information, a hammer sensor 153 detects hammer information, a plunger speed sensor 154 detects plunger speed information, a GPS sensor 155 detects positional information of the piano 10, an inclination sensor 156 detects inclination information of the piano 10, a peripheral temperature sensor 157 detects peripheral temperature information, a peripheral humidity sensor 158 detects peripheral humidity information, a plunger temperature sensor 159 detects plunger temperature information, and log data including the detected data is transmitted to a server device. The server device analyzes the log data, and generates notification information (such as notification about necessity of tuning or tuning recommendation time) for notifying a state of the piano 10, and transmits the notification information to the piano 10. |
