The work was composed with Glass's late father in mind.
He began composing his own work, and the rest is history.
The work, composed in 1976, is also not new to records.
The work was composed in three major periods of his life.
This work had been composed in memory of those who lost their lives on September 11, 2001.
The work was composed when he returned home from the holiday.
It is, in fact, a quite early work, certainly composed before 1769, and possibly a fair bit earlier.
The work was likely composed in 1723, but the date of its first performance is unknown.
Internal evidence suggests that the work was composed in or around the 1480s.
In the next decade he composed his most notable work.