Martins de Castro Chaib, F.; Teixeira Bittencourt, L. A. Instrumental Substitution and Repertoire Dissemination: A Report on Directionlessness (2020 2022), by Luís Bittencourt. Rev. Vórtex 2026, 14, 1-42. https://doi.org/10.33871/vortex.2026.14.11015.