The graph below illustrates how the use of particular tunes types (rhythms) has changed over time in the history of commercial recordings of Irish traditional music. Note that this measures the number of recordings per decade, as opposed to the (smaller) number of musically distinct tunes per decade. Undated recordings are excluded from this graph.
(black) = 100% of tune recordings during that decade
(shading) = 50% of tune recordings during that decade
(white) = 0% of tune recordings during that decade
