Many composers have used the word 'processional' as part of their titles. Asker needs to be more specific in the information being sought.
Johann Pachelbel's Canon in D major is used very often for wedding processional music.
You would say a piece of music was composed BY someone.
No, it was composed by Beethoven.
No, it was composed by 'Gioachino Rossini.'
The Trout Quintet was composed by Franz Schubert.
The processional was "Praise, My Soul, the King of Heaven" or "The Queen's Processional". You can hear me play it by searching "You Tube" under "Geoff Olson Queen's Processional".
The processional entrance you're thinking of is called an ovation.
Introduction for the processional march to a graduation is called Pomp and Circumstance. This is a traditional march that is played at most graduations.
Ovation
Polonaise is the dance in triple meter that originated as a stately processional for the Polish nobility.
confessional, Congressional, processional
Emmanuel, or the better known as the hymn, O Come, O Come Emmanuel, is attributed to have originated as a processional used by the Franciscan Nuns in the 15th century. It is also believed that it may have Gregorian origins from the 8th century.
The Candlelight Processional festival is held at Walt Disney World Resorts. Specifically, it takes place during select dates in November and December.
It's called the recessional
The processional entrance of a victorious general was called a triumph. During the reign of Augustus, the honor of a triumph was reserved for members of the imperial family. An ovation was given to victorious generals who were not related to the imperial family.
Processional starts at 4am. Wedding at 6am.
Ovation