Who is considered by some scholars to be the leading composer of pre-Classical period?

While there are many talented composers from the pre-Classical period, Johann Sebastian Bach is considered by some scholars to be the leading composer of that era.

Here's why:

* Master of Counterpoint: Bach's mastery of counterpoint (the art of combining multiple independent melodies simultaneously) is unmatched. His fugues, canons, and chorales demonstrate his exceptional skill in this area.

* Influence on Later Composers: Bach's work heavily influenced later composers, including Mozart, Beethoven, and Brahms.

* Vast and Varied Catalogue: He composed in a wide range of genres, including organ music, vocal works, chamber music, and keyboard concertos.

* Technical Innovation: He pushed the boundaries of composition with his innovative use of harmony, rhythm, and form.

* Religious Significance: His religious music, especially his cantatas and Mass in B Minor, are considered masterpieces of the Baroque era.

However, it's important to note that "leading composer" is a subjective term. Other composers from the pre-Classical period, like Handel and Vivaldi, are also highly regarded and have a strong claim to the title.

Ultimately, it's up to individual scholars and music lovers to determine who they consider the most important composer of the pre-Classical period.