This spreadsheet includes data related to user interface and functionality charts of Erkki Kurenniemi's electronic musical instruments. Data covers only musical instruments; not studio equipment. The data set produced as a part of the PhD project "The user stories of Erkki Kurenniemi’s electronic musical instruments" by the author. The data is visualized with a video published in https://vimeo.com/375784663 PI and contact information: Mikko Ojanen / https://orcid.org/0000-0002-7833-9659 The outlining of charts is based on previous research on DMIs, e.g. by Birnbaum, D., Fiebrink, R., Malloch, J., & Wanderley, M. M. Towards a dimension space for musical devices. Proceedings of the 2005 Conference on New Interfaces for Musical Expression, 192-195. Magnusson, T. An Epistemic Dimension Space for Musical Devices. Proceedings of the 2010 Conference on New Interfaces for Musical Expression, 43-46. Wanderley, Mortensen M. 2002. Evaluation of input devices for musical expression: Borrowing tools from HCI. Computer Music Journal, 26(3), 62-76.