What features of a portal are shown in st. annes portal?answer as soon as possible

The portal of St Anne on the right of the western facade was built in 1200 and is the earliest of the three portals to be built. The tympanum is actually dated to about 1150 and was once part of the earlier cathedral of St Stephen whose western facade was once 40 metres to the west of the present Cathedral.

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alisa202

Concerto grosso was composed during the classical era. (sorry if i misspelt the name)