The master lodged this summer near Nidelbad, above Rüschlikon on Lake Zürich. Amongst the friends and acquaintances old and new with whom he had intercourse were Bargheer, Hegar, G. Eberhard, Gottfried Keller, Bernhard Hopfer, Professor and Frau Engelmann from Utrecht, and J. V. Widmann. Brahms made Widmann's acquaintance at this time at the house of Hermann Götz, and seems to have been immediately attracted by him; partly, perhaps, because the younger man had the courage of his opinions, and ventured to oppose him in argument. The acquaintance, cemented during the three days of the Zürich Festival, grew into an intimate and lasting friendship, to which the musical world is indebted for Widmann's well-known and delightful 'Recollections,' already several times referred to in these pages. Hegar mentions[48] that the works which occupied Brahms during his stay at Rüschlikon were the second set of Liebeslieder, the book of songs, Lieder and Gesänge, Op. 63, and the Vocal Quartets, Op. 64. It was at this time, also, that he finally completed the Pianoforte Quartet in C minor. The songs and quartets were published in the autumn by Peters; the four Duets for Soprano and Contralto, Op. 61, and the seven Songs for mixed Chorus, _a capella_, Op. 62, were issued about the same time by Simrock. The Neue Liebeslieder and the C minor Quartet for Pianoforte and Strings did not appear till 1875. From this time onward Brahms' copyrights were acquired, as each new work was completed, by Simrock of Berlin, with only four exceptions--Nänie, Op. 82; six Vocal Quartets, Op. 112; thirteen Canons, Op. 113, which were bought by Peters of Leipzig; and a Prelude and Fugue for Organ, published in 1881 as a supplement to the _Musikalisches Wochenblatt_ without opus number. In future, therefore, we shall mention the publication, but not the publisher, of the works. Those compositions which were originally acquired from the composer by Breitkopf and Härtel were resold by this firm to Simrock later on, and appear, therefore, in the complete published catalogue of Brahms' works as Simrock's publications. The third and, as it turned out, the last season of Brahms' work as artistic director of the Gesellschaft der Musikfreunde opened in due course, and at the two ante-Christmas concerts of the season 1874-75 the following programmes were performed: On November 8-- 1. Rubinstein: Overture to the Opera 'Dimitri Donskoi.' 2. Beethoven: Pianoforte Concerto in E flat. (Pianoforte, Herr Brahms.) 3. Brahms: Songs for mixed Chorus, _a capella_, Op. 62-- (a) Waldesnacht. (b) 'Dein Herzlein mild.' (c) Von alten Liebesliedern.' 4. Berlioz: 'Harold in Italy.' Symphony in four parts. On December 6--Beethoven's Missa Solemnis in D major.