Information processing device, method and a computer-readable non-transitory recording medium

A method of causing a computer to execute processing of:

• acquiring first information corresponding to a first musical sound and second information corresponding to a second musical sound generated after the first musical sound;
• acquiring a first occurrence probability, which is an occurrence probability of a special playing style with respect to an elapsed time since an end of a predetermined operation, and a second occurrence probability, which is an occurrence probability of the special playing style with respect to an elapsed time after the first musical sound is generated until the second musical sound is generated, according to the first information and the second information and the second information;
• and
• determining whether to generate the second musical sound with any one of a normal playing style and the special playing style, according to the first occurrence probability and the second occurrence probability.

A computer-readable non-transitory recording medium having a program recorded thereon, the program being configured to cause a computer to execute processing of:

• acquiring first information corresponding to a first musical sound and second information corresponding to a second musical sound generated after the first musical sound;
• acquiring a first occurrence probability, which is an occurrence probability of a special playing style with respect to an elapsed time since an end of a predetermined operation, and a second occurrence probability, which is an occurrence probability of the special playing style with respect to an elapsed time after the first musical sound is generated until the second musical sound is generated, according to the first information and the second information and the second information;
• and
• determining whether to generate the second musical sound with any one of a normal playing style and the special playing style, according to the first occurrence probability and the second occurrence probability.