According to the publisher, it incorporates all the previous material plus 2500 new entries, and is available as a PDF download:

https://www.degruyter.com/view/product/27060

Bryan

Bryan Martin, MusBac, MA
Technical Supervisor
Music Library
University of Toronto
(416) 978-3739
https://music.library.utoronto.ca


-----Original Message-----
From: Association for Recorded Sound Discussion List <[log in to unmask]> On Behalf Of Thomas Stern
Sent: March 29, 2018 12:28 PM
To: [log in to unmask]
Subject: [ARSCLIST] Großes Sängerlexikon

Großes Sängerlexikon (Kutsch & Riemens) - does the 4th edition include updates to the 3rd, or simply incorporate the 2 supplemental volumes? anyone know if they plan to issue a cd-rom ?

Thanks.

Thomas.