This is a dataset of Candombe recordings with annotated beats and downbeats, totaling over 2 hours of audio. It comprises 35 complete performances by renowned players, in groups of three to five drums. Recording sessions were conducted in studio, in the context of musicological research over the past two decades. A total of 26 tambor players took part, belonging to different generations and representing all the important traditional Candombe styles. The audio files are stereo with a sampling rate of 44.1 kHz and 16-bit precision. The location of beats and downbeats was annotated by an expert, adding to more than 4700 downbeats. The audio is provided as .flac files and the annotations as .csv files. The values in the first column of the csv file are the time instants of the beats. The numbers on the second column indicate both the bar number and the beat number within the bar. For instance, 1.1, 1.2, 1.3 and 1.4 are the four beats of the first bar. Hence, each label ending with .1 indicates a downbeat. Another set of annotations are provided as .beats files in which the bar numbers are removed. Citation: This dataset was released with the publication of the following paper. So if you find the dataset useful and want to reference it in your publications, please cite it. "Beat and Downbeat Tracking Based on Rhythmic Patterns Applied to the Uruguayan Candombe Drumming”. Leonardo Nunes, Martín Rocamora, Luis Jure, Luiz W. P. Biscainho. Proceedings of the 16th International Society for Music Information Retrieval Conference (ISMIR 2015), pages 264-270, Málaga, Spain, 26-30 October, 2015. @inproceedings{Nunes2015, author = {Leonardo Nunes and Martín Rocamora and Luis Jure and Luiz W. P. Biscainho}, title = {{Beat and Downbeat Tracking Based on Rhythmic Patterns Applied to the Uruguayan Candombe Drumming}}, booktitle = {Proceedings of the 16th International Society for Music Information Retrieval Conference (ISMIR 2015)}, month = {Oct.}, address = {Málaga, Spain}, pages = {264--270}, year = {2015} }