AGO Cheat Sheet 2026

The 30 highest-yield AGO facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. The Romantic organ concept of 'tonal enclosure' (using swell boxes) differs from Baroque terraced dynamics primarily because: → Swell boxes allow continuous, gradual dynamic shading within a single registration
2. The 'Orgelbüchlein' (Little Organ Book) by J.S. Bach was intended primarily to serve which purpose? → To teach young organists how to develop chorale preludes and to practice pedal technique
3. The 'alternatim' practice in Renaissance and Baroque liturgical organ music refers to which convention? → Alternating verses of a hymn or mass movement between the organ and choir or singers
4. Which document most directly guides the planning of the Liturgy of the Word in many mainline Protestant traditions? → The Revised Common Lectionary
5. In which liturgical rite does the 'Cherubic Hymn' appear as a central musical element? → Byzantine Rite
6. The pitch designation '8'' on an organ stop indicates: → The stop sounds at unison pitch as written on the score
7. Olivier Messiaen's 'La Nativité du Seigneur' (1935) introduced which compositional element that was novel in organ music at the time? → Modes of limited transposition and Hindu rhythmic patterns (talas)
8. When harmonizing a traditional hymn tune for SATB choir, proper voice-leading requires: → Resolving the leading tone upward to the tonic and avoiding parallel fifths/octaves
9. What is the function of a key signature? → Indicates sharps or flats in the key
10. What is a common practice for preparing a recital performance? → Recording and reviewing performance.
11. Gottfried Silbermann (1683–1753) was a renowned German organ builder whose instruments are most closely associated with which composer? → Johann Sebastian Bach
12. A choral conductor addressing intonation problems where sopranos consistently sing flat should first: → Check whether singers are breathing adequately and supporting tone
13. What is the primary function of a swell box on a pipe organ? → To enclose pipes behind shutters that open and close to control volume
14. When introducing a student to organ registration for the first time, what is the most pedagogically sound approach? → Begin with a single 8' Principal and gradually add stops as understanding grows
15. When tuning reed pipes, adjustments are made by: → Moving the tuning wire up or down to alter the effective vibrating length of the tongue
16. When conducting a choir through a fermata, the conductor should release it by: → Giving a clear cutoff gesture followed by a preparatory beat
17. What is the benefit of practicing with a metronome? → It helps build tempo accuracy.
18. Which technique in organ improvisation is called 'stretto'? → Overlapping entries of the fugue subject before completion
19. In accompaniment, a 'neutral' organ registration typically means: → A blend of 8' principals and flutes that supports without overwhelming the soloist
20. What interval relationship defines a tritone? → An augmented fourth or diminished fifth (6 half steps)
21. In German Baroque terminology, 'Plenum' registration refers to: → The full principal chorus from 16' through mixtures, without reeds
22. When voicing a fugue subject on the organ, the performer should primarily ensure: → The subject is clearly audible above the other voices at each entrance
23. Sigfrid Karg-Elert's 'Chaconne and Fugue on BACH' exemplifies which 20th-century Germanic trend in organ programming? → Continuation of the Romantic virtuoso tradition with late-Romantic harmonic language
24. In French Baroque organ literature, the 'Grand Jeu' registration typically combines which stops? → Bourdons, Montres, Prestant, Jeux de tierce, and Trompette/Clairon
25. The 'Tierce' mutation stop sounds at which pitch above the fundamental? → A major third (1 3/5')
26. Matthias Weckmann, a significant 17th-century North German composer, was a student of which famous organist? → Heinrich Schütz and Jacob Praetorius
27. In organ registration, a '2'' (two-foot) stop sounds at what interval above written pitch? → Two octaves above
28. The coupler 'Swell to Great' causes: → Swell stops to sound when Great keys are played
29. In the context of AGO certification, what is the most important consideration when implementing concert repertoire & programming? → Ensuring alignment with established standards, stakeholder needs, and best practices
30. What is the purpose of playing a 'free harmonization' of a hymn tune? → To introduce variety and fresh harmonic color on repeated stanzas