System

A system comprising:

• circuitry configured to:
• receive, via a communication interface coupled to a packet-switched network, user voice information, character information, melody information represented by voice, and music type information from a terminal device;
• convert the user voice information and the melody information into character information using a speech recognition component and generate basic data by integrating the converted character information with the received character information;
• analyze the user voice information and the melody information in a time domain or a frequency domain to extract melody feature information and rhythm feature information, analyze the character information using a natural language processing program to generate shaped character information, and construct a prompt sentence including the melody feature information, the rhythm feature information, the shaped character information, and the music type information;
• transmit the prompt sentence to a generative neural network model and obtain music design information including musical structure information, chord progression information, and arrangement instruction information;
• generate musical description information including pitch information and time information from the music design information, execute a music encoding program to generate control information sequences, and convert the control information sequences into an acoustic waveform by a synthesis process;
• extract speaker feature information from the user voice information, execute a voice synthesis process based on the speaker feature information to synthesize a vocal audio signal, mix the vocal audio signal with an accompaniment audio signal to produce a digital music file;
• and
• store the digital music file with identification information and distribution information in a storage device, and transmit distribution information enabling access to the digital music file to the terminal device via the communication interface.

A method comprising:

• receiving, via a communication interface coupled to a packet-switched network, user voice information, character information, melody information represented by voice, and music type information from a terminal device;
• converting the user voice information and the melody information represented by voice into character information using a speech recognition component, and generating basic data by integrating the converted character information with the received character information;
• constructing, based on the basic data and the music type information, a prompt sentence in a natural language including emotion information and structure information, and transmitting model input information including the prompt sentence to a generative neural network model;
• obtaining, from the generative neural network model, music information including musical structure information and performance information, and outputting the music information as symbolic information or waveform information;
• when the music information is the symbolic information, converting the symbolic information into an acoustic waveform by a synthesis process and encoding the acoustic waveform as a digital music file in a standardized acoustic data format;
• and
• storing the digital music file in a storage device associated with identification information and attribute information to generate distribution information enabling an external terminal to access the digital music file, and accumulating record information representing a correspondence among the basic data, the prompt sentence, identification information of the generative neural network model, and the digital music file.