Audio acoustics 2 Convolutional neural network 2 Convolutional neural networks 2 Deep learning 2 Input type 2 It focus 2 Learning approach 2 Model training 2 Music 2 Musical information retrieval 2 Musical instrument identification 2 Musical instruments 2 Neural network model 2 Related works 2 deep learning 2 musical information retrieval 2 musical instrument identification 2 digital music encoding 1 music collections 1 music information retrieval 1 scalable and content-based search 1