The Magic Flute (1975 film) arrival of the Three Boys by descent in a charmingly decorated 18th-century hot-air balloon represents a faithful reflection by Bergman of Schikaneder's original libretto; Schikaneder's theater abounded in mechanical devices of this kind. Throughout the performance and during the intermission, we get backstage views of the theatre. Tamino plays his flute while, through the wings, we catch sight of Papageno (responding to Tamino's flute) and Pamina. At this stage in the plot, Pamina and Tamino have not yet met. The opposite happens when Pamina and Papageno are on stage and, this time, it is Tamino who is seen sitting on
Piano concertos by Wolfgang Amadeus Mozart it was probably J.C. Bach, whom Mozart admired, who introduced the structural innovation of allowing the keyboard to introduce new thematic material in its first entry. Concertos Nos 1–4 (K. 37, 39, 40 and 41) are orchestral and keyboard arrangements of sonata movements by other composers. The next three concertos (K. 107/1, 2 and 3), which are not numbered, are arrangements of piano sonatas by J.C. Bach (Op 5. Nos. 2, 3, and 4, all composed by 1766). Based on handwriting analysis of the autographs they are believed to date from 1771–72. Concerto No. 5, K. 175 from 1773 was