Music is central in the Sélèque family; Jean-Marc grew up playing guitar while his father continues to play piano. The treble clef on the Partition label is indeed inverted—to make the S of the family name. 

With each vintage, the score on the label changes to a different song to reflect something that happened that year. Millésime 2012, for example, has Jimi Hendrix's Changes, because Jean-Marc instituted a series of changes in how he worked that year. 

Partition is Jean-Marc's creation. Seven barrels from seven vineyard sites, always the same sites each year. Les Frileux in Epernay gives Chardonnay; Moque-Bouteille in Dizy gives Chardonnay; La Justice in Vertus gives Chardonnay; Basses Ronces in Mardeuil gives Chardonnay; Les Porgeons, Les Gouttes d'Or, and Les Gayères in Pierry give, respectively, Chardonnay, Meunier, and Pinot Noir. The blend is dominated by Chardonnay, with Meunier and Pinot Noir (specifics for a given year are on the back label). 

Ageing on the lees is for four to five years. Significantly, beginning with the 2010 vintage, this ageing is done in bottle with a cork closure rather than with the typical beer cap closure (Jacquesson also ages on cork). A cork allows more of an exchange of oxygen in the beginning before the secondary fermentation begins, but once that begins and the pressure builds up within a bottle, a cork becomes less permeable than a cap. The end result is a more textured and more complex wine. Partition is bottled without fining or filtration. Production is 125 cases.