Born in Ath in Southern Netherlands, he soon moved to the nearby town of Tournai to practice his trade. Little is known of his training but a remarkable number of his instruments have survived. His building style is quite contrary to his more famous contemporaries, like his neighbours Dulckens in Antwerp, the Hass family in Hamburg or the Taskins of Paris, that at the time created complex machines with an extensive variety of registers and knee levers. Delin's surviving instruments are simple, reminiscent of the old Ruckers instruments of a century before and of good workmanship as witnessed by the number of surviving instruments.
Two surviving harpsichords, both have a single manual and have only two 8' choirs and a buff stop, with all battens protruding through the instruments side, similar to original Ruckers instruments.
Kottick mentions four bentside spinets, all with a single 8' choir. A colorful fifthbentside spinet signed "A.D. 1738" and bearing a rose with the initials AD, has been attributed to him as well.
Three clavicytheria, strung like his harpsichords with two 8' registers, and guidebattens protruding through the cheek. The clavicytheria have an elegant pivot mechanism of Delins' own design, needing no spring action and only gravity for the return. Chung describes Delins clavicytherium thus: " succeeded in overcoming the difficulties of building an upright harpsichord better than any other builder. His three instruments, which are considered by many to be the finest of all surviving clavicytheria, have an amazingly fine touch that is achieved by a special action that upon the release of the keys allows the jacks to return without the need of springs or additional weights."
Delin's original case decor seems to have been simple, but some of his instruments later received "makeovers". Most notably his 1760 clavicytherium, was retrofitted with an extravagant gilded, rococodoor. The 1738 spinet is elaborately painted with a forest scene on the inside of the lid, while the case is covered with a menagerie of monkeys playingmusical instruments. The soundboard paintings in Delin's instruments are typical Flemish floral motifs, with visible outlines, flat coloring and little detail, a style similar to the Ruckers.
