Scholars have long been aware of the intriguing fact that the late fourteenth- and early fifteenth-century French song repertory survives almost exclusively in non-French sources. Most of the principal collections of chansons copied between c.1380 and 1420 – that is, in the period corresponding roughly to the reign of Charles VI, sources like PR, Pit, ModA and FP – derive from Italy; further witness to the circulation of this repertory south of the Alps is found in additional, fragmentary sources, such as Lu, SL and GR. In comparison, the number of French songs preserved in manuscripts of northern provenance is remarkably slight. Moreover, those works that do survive in such sources (and these are mostly Flemish fragments) are generally simple works in classic Ars nova style; hardly any songs from the repertory we associate with Ars subtilior feature in these collections at all.

The city of Laon was a significant commercial and administrative centre in late medieval northern France. Laon's rich and powerful cathedral attracted many to its chapter, which was the largest in the country. In the years circa 1400 its ranks included a number of leading musicians. An investigation into their musical and non-musical duties sheds fascinating light on to the daily life of the cathedral musician and his position in the local urban and rural context.

In his Prologue, Guillaume de Machaut lists the ballade entée, or ‘grafted ballade’, as one of the many genres he is inspired to write to praise and honour all ladies. It is unclear from this fleeting reference, however, exactly what type of work Machaut meant by this term and whether he was referring to a purely poetic form or to one that involved music. That the practice of citation in lyric poetry was well established at this time is demonstrated by Machaut's own output, which reveals him to have been a master of this art; this literary tradition was to continue to thrive in the later fourteenth century.