...dating from the 1850s, forthcoming from DaCapo:
https://www.jpc.de/jpcng/classic/detail/-/art/die-streichquartette-vol-1/hnum/11480266
Rather attractive and fun-sounding, I thought.
Complete string quartets to be released on Dacapo May 22nd, including premiere recordings of Nos. 4-6.
https://www.prestomusic.com/classical/products/9855602--peter-heise-complete-string-quartets (https://www.prestomusic.com/classical/products/9855602--peter-heise-complete-string-quartets)
https://www.jpc.de/jpcng/classic/detail/-/art/peter-heise-saemtliche-streichquartette/hnum/12692464 (https://www.jpc.de/jpcng/classic/detail/-/art/peter-heise-saemtliche-streichquartette/hnum/12692464)
(https://media1.jpc.de/image/w2000/front/0/0636943628324.jpg)
(https://media1.jpc.de/image/w2000/rear/0/0636943628324.jpg)
The first three quartets, issued a few years ago, are all most attractive works, so this is a very welcome completion of Heise's cycle.