Build and train an LSTM network capable of generating folk songs using Tensorflow and Keras in this 31-minute tutorial video. Explore the Keras functional API while learning preprocessing techniques, creating training sequences, and constructing a neural network model. Follow along as the instructor guides you through adding input layers, nodes, and upper layers before compiling, training, and saving the model. Conclude by testing the newly created melody generator and gain insights into the process of developing AI-powered music composition tools.