Music playing device, electronic instrument, music playing method, and storage medium

A music playing device, comprising:

• an operation detection unit configured to be connected to an operation unit, the operation detection unit detecting an operation state for an operation performed by a user on the operation unit;
• a memory control unit that stores the detected operation state in a memory as a current operation state and that designates as an immediately previous operation state an operation state stored in the memory immediately prior to the current operation state being stored, every time the operation state is detected;
• a play command operation detection unit that detects a play command operation performed by the user;
• a pitch determination unit that determines a pitch of a musical note to be played in response to the play command operation being detected and based on the current operation state stored in the memory;
• a play command unit that issues a command to a sound source to play the musical note of said determined pitch;
• and
• a first musical note control unit that, after the command to play the musical note is issued to the sound source, controls the musical note played in the sound source based on the current operation state and the immediately previous operation state stored in the memory.

A music playing method performed by a music playing device, the method comprising:

• detecting an operation state for an operation performed by a user on an operation unit;
• storing the detected operation state in a memory as a current operation state and designating as an immediately previous operation state an operation state stored in the memory immediately prior to the current operation state being stored, every time the operation state is detected;
• detecting a play command operation performed by the user to issue a command to play a sound;
• determining a pitch of a musical note to be played in response to the play command operation being detected and based on the current operation state stored in the memory;
• issuing a command to a sound source to play the musical note of said determined pitch;
• and
• controlling, after the command to play the musical note is issued to the sound source, the musical note played in the sound source based on the current operation state and the immediately previous operation state stored in the memory.

A non-transitory storage medium that can be read by a computer provided in a music playing device, the non-transitory storage medium storing a computer program to be executed by the computer to cause the music playing device having the computer to perform the following steps:

• detecting an operation state for an operation performed by a user on an operation unit;
• storing the detected operation state in a memory as a current operation state and designating as an immediately previous operation state an operation state stored in the memory immediately prior to the current operation state being stored, every time the operation state is detected;
• detecting a play command operation performed by the user to issue a command to play a sound;
• determining a pitch of a musical note to be played in response to the play command operation being detected, and based on the current operation state stored in the memory;
• issuing a command to a sound source to play the musical note of said determined pitch;
• and
• controlling, after the command to play the musical note is issued to the sound source, the musical note played in the connected sound source based on the current operation state and the immediately previous operation state stored in the memory.