The concept here is to occasionally use the hymn "meet it is"  when appropriate in the Divine Liturgy as a vehicle for learning the irmos melodies. By singing it in the tone of the week choristers will eventually be able to sing canons in matins.
 
 "Wherever a canon is sung, (meet it is) is sung to the same melody as the irmos of the canon"
    - Orthodox daily prayers, St. Tikhon's seminary press, page 50

 Meet it is in Irmos melody tone 1

 Meet it is in Irmos melody tone 2       alternate form of  tone 2 

 Meet it is in Irmos melody tone 3

 Meet it is in Irmos melody tone 4

 Meet it is in Irmos melody tone 5

 Meet it is in Irmos melody tone 6       alternate form of tone 6 

 Meet it is in Irmos melody tone 7

 Meet it is in Irmos melody tone 8
 
Megalynaria for the great feasts as a zip file