Articles indéfinis (Indefinite Articles) is Jonty Harrison’s first CD. Here are collected five works of musique concrète spanning more than 15 years. The set begins with Pair / Impair, a piece created in 1978 but aging very well, based upon the notions of dynamic and static. The highlight of this CD is … et ainsi de suite…, which Harrison describes as a “French suite” in the purest musique concrète tradition. The 11 segments (mostly in the one-to-two-minutes range) present variations on the sound of wine glasses. Together with Aria, they illustrate Harrison’s fascination with movement and sound spatialization. Each segment comes back to the glasses and push their sound into another direction. Aria and Hot Air both use the prime element of air as their main sound source. The latter contains a wide range of dynamics. The composer would later create two more pieces (included on Évidence matérielle) using prime elements, wood and water, fuller and better constructed. Unsound Objects is clearly weaker: it lacks focus and poetry. Articles indéfinis proved there was serious research on musique concrète going on in England and that Harrison deserved a place among the leading figures of the genre, but his second CD would be stronger.