  The visualization of publication and citation data is popular in
bibliometrics. Although less common, the representation of empirical data as
sound is an alternative form of presentation (in other fields than
bibliometrics). In this representation, the data are mapped into sound and
listened to by an audience. Approaches for the sonification of data have been
developed in many fields since decades. Since sonification has several
advantages for the presentation of data, this study is intended to introduce
sonification to bibliometrics named as 'metrics sonification'. Metrics
sonification is defined as the sonification of bibliometric information
(measurements, data or results) for their empirical analysis and/or
presentation. In this study, we used metadata of publications by Loet
Leydesdorff (named as Loet in the following) to sonify their properties. Loet
was a giant in the field of scientometrics, who passed away in 2023. The track
based on Loet's publications can be listened to on SoundCloud using the
following link: https://on.soundcloud.com/oxBTA32x4EgwvKVz5. The track has been
composed in F minor; this key was chosen to express the sad occasion. The
quantitative part of the track includes a parameter mapping (a sonification) of
three properties of his publications: (1) publication output, (2) open access
publication, and (3) citation impact of publications. The qualitative part
(spoken audio) focuses on explanations of the parameter mapping and
descriptions of the mapped papers (based on their titles and abstracts). The
sonification of Loet's publications presented in this study is only one
possible type of metrics sonification application. As the great number of
projects from other disciplines have demonstrated, many other types of
applications are possible in bibliometrics.
