To the same Brunetto Latini - the teacher of Dante - who, in his 'Canzoni,' adopts the customary manner of the 'Trovatori,' we owe the first-known 'versi sciolti,' or blank hendecasyllabic verses, and in his apparent absence of form, a true and genuine passion suddenly showed itself. The same voluntary renunciation of outward effect, through confidence in the power of the inward conception, can be observed some years later in fresco-painting, and later still in painting of all kinds, which began to cease to rely on color for its effect, using simply a lighter or darker shade. For an age which laid so much stress on artificial form in poetry, these verses of Brunetto mark the beginning of a new epoch.84
About the same time, or even in the first half of the thirteenth century, one of the many strictly balanced forms of mere, in which Europe was then so fruitful, became a normal and recognized form in Italy - the sonnet. The order of rhymes and even the number of lines varied for a whole century, till Petrarch fixed them permanently. In this form all higher lyrical and meditative subjects, and at a later time subjects of every possible description, were treated, and the madrigals, the sestine, and even the 'Canzoni' were reduced to a subordinate place. Later Italian writers complain, half jestingly, half resentfully, of this inevitable mould, this Procrustean bed, to which they were compelled to make their thoughts and feelings fit. Others were, and still are, quite satisfied with this particular form of verse, which they freely use to express any personal reminiscence or idle sing-song without necessity or serious purpose. For which reason there are many more bad or insignificant sonnets than good ones.