The Telemann-Werke-Verzeichnis (Telemann Works Catalogue), abbreviated TWV, is the numbering system identifying compositions by Georg Philipp Telemann, published by Martin Ruhnke.
The prefix TWV is generally followed by a genre number, a letter indicating the key (in some cases), and a work number. The genre number indicates the general type or medium of the work. A major key is in upper case, a minor key in lower case. The second number is the work's number within the genre. For example, Telemann's Concerto polonois in B flat major for strings and basso continuo is TWV 43:B3. His Orchestral suite in D major is TWV 55:D18, and his Overture in G minor is TWV 55:g4.
Vocal works were catalogued in a similar way by Werner Menke in the Telemann-Vokalwerke-Verzeichnis (Telemann Vocal Works Catalogue), abbreviated TVWV. For example, Telemann's Johannes-Passion is TVWV 5:42. His Times of the Day cantata is TVWV 20:39.
Genres of vocal works are numbered from 1 to 25, and usually prefixed by TVWV. Genres of instrumental works are numbered from 30 to 55.
The genres are numbered as follows:
TVWV1 – Church cantatasAch Herr! Wie ist meiner Feinde so viel, TWV 1:26Das ist je gewißlich wahr, TWV 1:183 (= BWV 141)Gott der Hoffnung erfülle euch, TWV 1:634 (= BWV 218)Ich weiß, daß mein Erlöser lebt, TWV 1:877 (= BWV 160)German Magnificat (cantatas) TWV 1:1104–1108Siehe, es hat überwunden der Löwe, TWV 1:1328 (= BWV 219)So du mit deinem Munde bekennest, TWV 1:1350 (first movement of this cantata, TWV 1:1350/1, reused as BWV 145/b, second movement of cantata Ich lebe, mein Herze, zu deinem Ergötzen, BWV 145)Wer ist der, so von Sodom kommt, TWV 1:1585 (first two movements of this cantata reused in the Passion pasticcio Wer ist der, so von Edom kömmt)TVWV2 – Cantatas for consecrationsTVWV3 – Cantatas for the ordination of preachersTVWV4 – Cantatas for funeralsTVWV5 – Passion oratorios and PassionsMich vom Stricke meiner Sünden, TWV 5:1 = Telemann's Brockes PassionTVWV6 – Sacred oratoriosDer Tag des Gerichts, TWV 6:8TVWV7 – PsalmsTVWV8 – MotetsJauchzet dem Herrn alle Welt, TWV 8:10 (= BWV Anh. 160)TVWV9 – Masses, Magnificat, and individual worksTVWV10 – CollectionsTVWV11 – Cantatas and serenades for weddingsTVWV12 – Compositions for birthdaysTVWV13 – Works for political celebrationsTVWV14 – Compositions for schools in Hamburg and AltonaTVWV15 – Oratorios and serenades for the MayorSecular vocalTVWV20 – Secular cantatasTVWV21 – Operas and ariasTVWV22 – Contributions to operas by other composersTVWV23 – Prologues for operasTVWV24 – Secular oratoriosHamburger Admiralitätsmusik, TWV 24:1TVWV25 – Pedagogical works, odes and songsMusic for keyboard instruments and luteTWV30 – Fugues for keyboardTWV31 – Chorale preludesTWV32 – Suites for harpsichordSuite in A major, TWV 32:14 (= BWV 824, No. 47 in Klavierbüchlein für Wilhelm Friedemann Bach)TWV33 – Fantasies, sonatas, concertos for harpsichordTWV34 – Minuets for harpsichordTWV35 – Individual pieces for harpsichord (Einzelstücke)TWV36 – Collection of manuscripts (Sammelhandschrift)TWV37 – Lustiger MischmaschTWV39 – Works for luteChamber musicTWV40 – Chamber music without basso continuo12 Fantasias for Solo Flute, TWV 40:2–1312 Fantasias for Solo Violin, TWV 40:14–25Six Sonates sans basse, TWV 40:101–106Six Canonical Sonatas, TWV 40:118-123Concertos for Four Violins, TWV 40:201–204TWV41 – Chamber music for 1 instrument with basso continuoTWV42 – Chamber music for 2 instruments with basso continuoTWV43 – Chamber music for 3 instruments with basso continuoParis quartetsTWV44 – Chamber music for 4 or more instruments with basso continuoTWV45 – Polish dances from the Rostock manuscriptMusic for orchestraTWV50 – Symphonies, divertimenti, marchesTWV51 – Concertos for solo instrument and orchestraViola Concerto in G major, TWV 51:G9Violin Concerto in G minor, TWV 51:g1 (arranged by Bach for solo harpsichord as BWV 985)TWV52 – Concertos for 2 instruments and orchestraConcerto for 2 violas in G major, TWV 52:G3TWV53 – Concertos for 3 instruments and orchestraTWV54 – Concertos for 4 or more instruments and orchestraTWV55 – Orchestral suitesHamburger Ebb' und Fluth, TWV 55:C3 = Water Music (Telemann)Burlesque de Quixotte, TWV 55:G10