| 摘要 |
The device is provided with a sliding tongue (1) and a sliding casing (2) for selecting and displaying music data sets from a quantity of music data arranged on the sliding tongue, whereby the sliding casing (2) and sliding tongue (1) are provided with a self-covering grid (Z, S) and whereby music data (15) are arranged in lines (Z) and columns (S) in the grid on the tongue, and indicators (10, 10', 10'') are arranged in the grid (Z, S) on the sliding casing (2) also in lines (Z) and columns (S), said indicators displaying at least one music data set (3, 4, 5, 6, 7, 8, 9).
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