Songs

Statistics that take the whole song as the unit of analysis include when songs were released, how rich and structured their lyrics are, their emotional tone, and the themes they explore. For songs that charted, the statistics also capture aspects of their market success.

Songs per Year

Number of songs per year and per archive, from 1964 to 2025.

Type-Token Ratio

Lexical diversity (STTR, MATTR) per year and archive.

Strophes per Song

Distribution of strophe counts across all songs, with archive breakdown.

MTLD

Measure of Textual Lexical Diversity (MTLD) per year and archive.

Genres

Genre distribution of chart songs per year, from Schlager to Rap.

Gender

Performer gender of chart songs per year — female, male, and mixed.

Chart Performance

Peak chart position of chart songs per year, from #1 to #200.

Diachronic Topic Trends

How thematic keyword sets (Liebe, Politik, Gewalt, …) evolve across decades, normalised per 10,000 tokens.

Sentiment Intensity & Polarity

How emotionally dense and how positive or negative are German-language songs?