Duinker and Martin's excellent study presents a wealth of new data, findings, and analyses. It represents a welcome focus on the details of musical aspects of hip-hop, as well as an effort to combine those details with more global aspects of recordings in order to clarify what our notions of hip-hop 'style' or 'sound' are based on. The examination of instrumental backgrounds and production parameters is particularly novel. I would suggest, however, that the study could have benefitted from the use of details pertaining to flow , particularly in the examination of trends over time and stylistic sub-groupings. I show that several parameters pertaining to the complexity, rhythmic placement, and repetitiveness of rhymes help track changes in hip-hop style over time, distinguish between more and less similar songs, and capture effects of apparent time within the same actual time period.

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风格与流派：邓克和马丁评论

Duinker和Martin的出色研究提出了大量新数据，发现和分析。它代表着人们对嘻哈音乐方面细节的关注，并努力将这些细节与录音的更多全局方面结合起来，以阐明我们对嘻哈音乐“风格”或“声音”的理解基于。仪器背景和生产参数的检查特别新颖。但是，我建议该研究可以从使用与流有关的详细信息中受益，特别是在检查随时间变化的趋势和文体分组中。我发现与韵律的复杂性，节奏位置和重复性有关的几个参数有助于追踪嘻哈风格随时间的变化，区分更多或更少的相似歌曲，