The phrase signifies the acquisition of a digital vocal library designed for use with voice synthesizer software, specifically one emulating the voice of the virtual character Kaito, without incurring any financial cost. It suggests the pursuit of freely accessible resources to create synthesized vocal performances.
The appeal of such resources lies in their potential to democratize music production and creative expression. Access to a complimentary vocal library enables hobbyists, independent artists, and educational institutions with limited budgets to explore vocal synthesis and generate musical content without substantial investment. Furthermore, the historical context of user-generated content within the Vocaloid community highlights the inherent value of freely distributed resources in fostering collaborative creativity and expanding the accessibility of the technology.