def set_X_gradients(self, X, X_grad):
        X.mean.gradient, X.variance.gradient = X_grad
Attempt to find featured artists in the item's artist fields and
dataset/ETHPy150Open SheffieldML/GPy/GPy/models/bayesian_gplvm.py/BayesianGPLVM.set_X_gradients--crossover with--dataset/ETHPy150Open beetbox/beets/beetsplug/ftintitle.py/find_feat_part