In this talk recent approaches will be summed up that Holzapfel proposed in
his cooperation with OFAI in Vienna and INESC TEC in Porto. One focus will
lie on the estimation of rhythmic similarity between two pieces of music.
Approaches were compared regarding their tempo robustness, and it will be
conclusions will be presented regarding how far tempo is an important
criterion for rhythmic similarity. Secondly, an overview will given about a
system based on mutual agreement to assess the quality of beat sequences in
relation to a piece of music. We presented an approach that is capable of
selecting pieces that are difficult for beat tracking without any prior
knowledge of the ground truth. Insight will be given in how far automatic
beat tracking agrees with human beat perception, and which signal
characteristics lead to problems for algorithms and for humans.