Apertura (musica)
Apertura in musica est exordium dramatis musici vel exordium melodramatis, compositio, quae olim instrumentale operae initium fuit. Verbum autem Beethoven, Mendelssohn, aliique aetatis Romanticae compositores adhibere coeperunt ad libera se-constituentia opera programmatica instrumentalia attingenda, quae genera sicut poema symphonicum praesagiebant. Aperturae operaticae "primum haud dubie ad caput programmatis cani destinata" sunt.

Notae

Bibliographia
Anon. 1957. Music: Op. I for Vacuum Cleaners. Time, 22 Aprilis.
Blom, Eric. 1954. Overture. Grove's Dictionary of Music and Musicians. Ed. 5a, ed. Eric Blom. Londinii et Toronti: Macmillan Publishers.
Burrows, Donald. 2012. Handel. Ed. 2a. Master Musicians Series. Oxoniae et Novi Eboraci: Oxford University Press.
Burton-Page, Piers. [Sine anno.] "Malcolm Arnold: A Grand, Grand Overture: Programme Note." Situs interretialis Chester-Novello.
Charlton, David, et M. Elizabeth C. Bartlet. 2016. Grétry, André-Ernest-Modeste. Grove Music Online. Oxford Music Online. Oxoniae: Oxford University Press. Situs venalis. 
Fisher, Stephen C. 1998. Sinfonia. The New Grove Dictionary of Opera. 4 voll., ed. Stanley Sadie. Londinii: MacMillan Publishers, Inc. ISBN 0333734327. ISBN 1561592285.
Fisher, Stephen C. 2001. Italian Overture. The New Grove Dictionary of Music and Musicians. Ed. 2a. Ed. Stanley Sadie et John Tyrrell. Londinii: Macmillan Publishers.
Larue, Jan. 2001. Sinfonia 2: After 1700. The New Grove Dictionary of Music and Musicians. Ed. 2a. Ed. Stanley Sadie et John Tyrrell. Londinii: Macmillan Publishers.
Maycock, Robert. 2009. What's On/Programme Notes, Malcolm Arnold (1921–2006), A Grand, Grand Overture, Op. 57 (1956). BBC Proms, programmatum Prom 76: Last Night of the Proms (Die Saturni, 12 Septembris).
Temperley, Nicholas. 2001. Overtur. The New Grove Dictionary of Music and Musicians. Ed. 2a. Ed. Stanley Sadie et John Tyrrell. Londinii: Macmillan Publishers.
Taruskin, Richard. [Sine anno.] Chapter 10: Instrumental Music Lifts Off. In Music in the Seventeenth and Eighteenth Centuries. Novi Eboraci: Oxford University Press. Textus.
Waterman, George Gow, et James R. Anthony. 2001. French Overture. The New Grove Dictionary of Music and Musicians.'' Ed. 2a. Ed. Stanley Sadie et John Tyrrell. Londinii: Macmillan Publishers.

 Praeludium
 Musica fortuita