Complex sentence: Its original version of 1771, which was later amended by Ignaz Franz, consisted of 12 verses; however, the amendment never gained acceptance and so the first version (altered by consolidating the 5th and 6th verse) retained.
Split into simpler sentences: Its original version of 1771 consisted of 12 verses, which was later amended by Ignaz Franz. However the amendment never gained acceptance and so the first version (altered by consolidating the 5th and 6th verse) retained.