in the last four years, and it is still a growing field.<a href="#fn1" class="footnote-ref" id="fnref1" role="doc-noteref"><sup>1</sup></a> The Music Information Retrieval (MIR) community incorporated DL via large-scale audio datasets that came as early as 2015 <span class="citation" data-cites="2015piczak 2017audioset engel2017neural">(Engel et al. 2017, Gemmeke et al. 2017, Piczak 2015)</span> and most MIR problems were outperformed by DL thenceforth.<a href="#fn2" class="footnote-ref" id="fnref2" role="d