Dubuque, Iowa in the context of "Rochester, Minnesota"

An organ pipe is a sound-producing element of the pipe organ that resonates at a specific pitch when pressurized air (commonly referred to as wind) is driven through it. Each pipe is tuned to a note of the musical scale. A set of organ pipes of similar timbre comprising the complete scale is known as a rank; one or more ranks constitutes a stop.

Iowa (/ˈaɪ.əwə/ EYE-ə-wə) is a state in the upper Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Illinois to the east and southeast, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north.

Iowa is the 26th largest in total area and the 31st most populous of the 50 U.S. states, with a population of 3.19 million. The state's capital, most populous city, and largest metropolitan area fully located within the state is Des Moines. A portion of the larger Omaha, Nebraska, metropolitan area extends into three counties of southwest Iowa. Other metropolitan statistical areas in Iowa include Iowa City, Cedar Rapids, Waterloo-Cedar Falls, Ames, Dubuque, Sioux City, and the Iowa portion of the Quad Cities. Iowa is home to 940 small towns, though its population is increasingly urbanized as small communities and rural areas decline in population.

An organ stop is a component of a pipe organ that admits pressurized air (known as wind) to a set of organ pipes. Its name comes from the fact that stops can be used selectively by the organist; each can be "on" (admitting the passage of air to certain pipes), or "off" (stopping the passage of air to certain pipes).

The term can also refer to the control that operates this mechanism, commonly called a stop tab, stop knob, or drawknob. On electric or electronic organs that imitate a pipe organ, the same terms are often used, with the exception of the Hammond organ and clonewheel organs, which use the term "drawbar".

During the Liturgy of the Eucharist, the second part of the Mass, the elements of bread and wine are considered to have been changed into the veritable Body and Blood of Jesus Christ. The manner in which this occurs is referred to by the term transubstantiation, a theory of St. Thomas Aquinas, in the Roman Catholic Church. Members of the Orthodox, Anglican, and Lutheran communions also believe that Jesus Christ is really and truly present in the bread and wine, but they believe that the way in which this occurs must forever remain a sacred mystery. In many Christian churches, some portion of the consecrated elements is set aside and reserved after the reception of Communion and referred to as the reserved sacrament. The reserved sacrament is usually stored in a tabernacle, a locked cabinet made of precious materials and usually located on, above, or near the high altar. In Western Christianity usually only the Host, from Latin: hostia, meaning "victim" (the consecrated bread), is reserved, except where wine might be kept for the sick who cannot consume a host.

The reasons for the reservation of the sacrament vary by tradition, but until around 1000 AD the only reason for reserving the sacrament was to be taken to the ill, homebound, or dying (viaticum). After that devotional practices arose, as for Eucharistic adoration and for Communion services when a priest is unavailable to celebrate the Eucharist. During the Paschal Triduum, the sacrament is taken in procession from the tabernacle, if on the high altar or otherwise in the sanctuary, to the Altar of Repose, and reserved from the end of the Mass of the Lord's Supper until the Communion Rite on Good Friday (called the Mass of the Presanctified, since the Eucharistic Prayer and consecration are omitted in the Good Friday celebration); this period is seen by some as symbolic of the time between the Last Supper and the Crucifixion of Jesus. The Blessed Sacrament is then absent from the tabernacle until the end of the Easter Vigil.

A tabernacle or a sacrament house is a fixed, locked box in which the Eucharist (consecrated communion hosts) is stored as part of the "reserved sacrament" rite. A container for the same purpose, which is set directly into a wall, is called an aumbry.

Within Catholicism, Eastern Orthodoxy, and in some traditions of Lutheranism and Anglicanism, the tabernacle is a box-like or dome-like vessel for the exclusive reservation of the consecrated Eucharist. It is normally made from precious metals, stone or wood, and is lockable and secured to the altar or adjacent wall to prevent the consecrated elements within from being removed without authorization. These denominations believe that the Eucharist contains the real presence of Jesus, and thus use the term tabernacle, a word referring to the Old Testament tabernacle, which was the locus of God's presence among the Jewish people.

C. W. & George L. Rapp, commonly known as Rapp & Rapp, was an American architectural firm famed for the design of movie palaces and other theatres. Active from 1906 to 1965 and based in Chicago, the office designed over 400 theatres, including the Chicago Theatre (1921), Bismarck Hotel and Theatre (1926) and Oriental Theater (1926) in Chicago, the Five Flags Center (1910) in Dubuque, Iowa and the Paramount Theatres in New York City (1926) and Aurora, Illinois (1931).

The named partners were brothers C. Ward Rapp (1860–1926) and George L. Rapp (1878–1941), sons of a builder and natives of Carbondale, Illinois. Their Chicago practice is not to be confused with the Trinidad, Colorado practice of their brothers Isaac H. Rapp (1854–1933) and William M. Rapp (1863–1920) or the notable Cincinnati architects George W. Rapp and Walter L. Rapp, to whom they were not related.