[17] 'Briefe von Theodor Billroth' (sixth enlarged edition).
[18] 'Neujahrsblatt der Allgemeinen Musikgesellschaft in Zürich,' 1898.
[19] The author is indebted for this and a few other extracts from Frau Schumann's diary to the kindness of Fräulein Marie Schumann.
[20] The date assigned to this letter in Dietrich's 'Recollections' is one amongst several similar mistakes that occur in the volume. They are to be explained by the circumstances that Brahms rarely put dates to his letters, and that those in question were supplied from memory.
[21] 'Briefe u. Schriften von Hans von Bülow.' Published by Marie von Bülow.
[22] Dietrich.
[23] A pedal point is a sound sustained, according to conditions prescribed by the rules of art, during a succession of varying harmonies of which it need not form an essential part.
[24] Matt. v. 4; Ps. cxxvi. 5, 6; 1 Pet. i. 24; James v. 7; 1 Pet. i. 25; Isa. xxxv. 10; Ps. xxxix. 4-7; Wisd. iii. 1; Ps. lxxxiv. 1, 2, 4; John xvi. 22; Ecclus. li. 27; Isa. lxvi. 13; Heb. xiii. 14; 1 Cor. xv 51-55; Rev. iv. 11; Rev. xiv. 13.
[25] The cadences of music are somewhat analogous to the punctuation of literature. A 'final cadence' has the effect of closing a musical period.
[26] Dated April 4 in Dietrich's 'Recollections.'