A Study on Universal Design of Musical Performance System
Sachiko Deguchi
Human-Computer Interaction, Part III, HCII 2021 Proceedings (LNCS 12764, Springer) 18 - 33 2021/07
[Invited] This paper describes the development of a new UI of musical performance system based on the results of workshops in a care home, and describes the extension of the UI for non-Western music.
The new UI has only 8 strings which are numbered or colored, and they can be tuned for most major or minor scales so that users do not need to use sharp/flat. A new function was added to the score display system to transpose keys in order to generate the scores which can be used for the new UI. The score DB is enhanced based on the result of workshops in a care home.
The new UI was evaluated by an experiment, and the result indicates that the new UI is easier than keyboard for the people who have little musical experience. Also, the two notations of duration of scores were evaluated by an experiment to know which is easy for those people.
The new systems (string UI of musical performance system and score display system) were developed for elderly people and people with little musical experience. Then, the string UI was extended so that users can choose a number of strings and each string can be any pitch. By using this function, some UIs of non-Western musical instrument can be implemented.