In addition to his highly successful "Methode Op. 27" (which went through four editions during his lifetime and a major revision, as Op. 241), Carulli also published several supplements to the method, along with a method without explanatory text ("L'Anti Methode Op. 272"), a method for the decacorde, a harmony treatise, a treatise dealing with guitar accompaniment of the voice, and several collections of vocalises and solfèges. The latter studies were intended to exploit the guitar's accompanying capabilities, and to be used by both singer-guitarists amateurs, and voice teachers who were not proficient figured bass readers.