Herz und Mund und Tat und Leben (Heart and mouth and deed and life), BWV 147a , is a cantata by Johann Sebastian Bach.
 He composed it in Weimar in 1716 for the fourth Sunday in Advent, 20 December.
 It is uncertain if the work was performed then.
 He later expanded the work in 1723 as "Herz und Mund und Tat und Leben", BWV 147.
Erforsche mich, Gott, und erfahre mein Herz, BWV 136
"Geh aus, mein Herz, und suche Freud" ("Go Forth, My Heart, and Seek Delight") is a summer hymn with a text by Paul Gerhardt written in 1653.
Ich lebe, mein Herze, zu deinem Ergötzen (I live, my heart, for your pleasure), BWV 145, is a five-movement church cantata on a libretto by Picander which Johann Sebastian Bach, as its composer, probably first performed in Leipzig on Easter Tuesday, 19 April 1729.
 As a seven-movement pasticcio, with one of the added movements composed by Georg Philipp Telemann, it is an Easter cantata known as So du mit deinem Munde bekennest Jesum (as it was published in the 19th century) or as Auf, mein Herz!
 (after the incipit of the pasticcio's first movement).
Johann Sebastian Bach composed the church cantata Herz und Mund und Tat und Leben (Heart and mouth and deed and life), BWV 147 , in 1723 during his first year as "Thomaskantor", the director of church music in Leipzig.
 His cantata is part of his first cantata cycle there and was written for the Marian feast of the Visitation on 2 July, which commemorates Mary's visit to Elizabeth as narrated in the Gospel of Luke in the prescribed reading for the feast day.
 Bach based the music on his earlier cantata BWV 147a, written originally in Weimar in 1716 for Advent.
 He expanded the Advent cantata in six movements to ten movements in two parts in the new work.
 While the text of the Advent cantata was written by the Weimar court poet Salomo Franck, the librettist of the adapted version who added several recitatives is anonymous.
"Ich hab in Gottes Herz und Sinn " (I have surrendered to God's heart and mind) is a Christian hymn with a text by Paul Gerhardt in twelve stanzas is sung to the melody of "Was mein Gott will, das g'scheh allzeit ".
 The theme of the hymn is faith in God and the submission to his will.
Josef Anton Bruckner (] ; (1824--)04 1824 (1896--)11 1896 ) was an Austrian composer best known for his symphonies, masses, and motets.
 The first are considered emblematic of the final stage of Austro-German Romanticism because of their rich harmonic language, strongly polyphonic character, and considerable length.
 Bruckner's compositions helped to define contemporary musical radicalism, owing to their dissonances, unprepared modulations, and roving harmonies.
Mein Herz und deine Stimme (My heart and your voice), WAB 79 is a lied composed by Anton Bruckner in 1868.
Ein Herz und eine Seele (literally "One Heart and One Soul" i.e. "hand in glove") is a German cult sitcom based on the British sitcom "Till Death Us Do Part" by Johnny Speight.
 The show premiered on January 15, 1973 and lasted for about twenty episodes, airing its last on November 4, 1974.
 In 1976, the show had a short-lived revival with another four episodes.
 "Ein Herz und eine Seele" was written by Wolfgang Menge.
Ich hab in Gottes Herz und Sinn (I have given over to God's heart and mind), BWV 92 , is a cantata by Johann Sebastian Bach for use in the Lutheran service.
 He composed the chorale cantata in Leipzig for Septuagesimae and first performed it on 28 January 1725.
 It is based on the hymn "Ich hab in Gottes Herz und Sinn " by Paul Gerhardt (1647), and is the only chorale cantata Bach based on a hymn by Gerhardt.

Question: What nationality was the composer of Mein Herz und deine Stimme, WAB 79?
Answer: Austrian