Right, so surely it'll be rescheduled? If the venue or artist has decided to not reschedule after the vaccines are rolled out, more fool them.
The answer to your question though is, no, you shouldn't go. The government has advised that you do not travel unless absolutely necessary.
Leisure and entertainment are not a necessity I am afraid.
You should take the refund you've been offered.
only 56000+ people have died
In tier 3:
●you must not meet socially indoors or in most outdoor places with anybody you do not live with, or who is not in your support bubble, this includes in any private garden or at most outdoor venues
●you must not socialise in a group of more than 6 in some other outdoor public spaces, including parks, beaches, countryside accessible to the public, a public garden, grounds of a heritage site or castle, or a sports facility – this is called the ‘rule of 6’
●hospitality settings, such as bars (including shisha venues), pubs, cafes and restaurants are closed – they are permitted to continue sales by takeaway, click-and-collect, drive-through or delivery services.
●accommodation such as hotels, B&Bs, campsites, and guest houses must close. There are several exemptions, such as for those who use these venues as their main residence, and those requiring the venues where it is reasonably necessary for work or education and training
●indoor entertainment and tourist venues must close. This includes:
-indoor play centres and areas, including trampolining parks and soft play
-casinos
-bingo halls
-bowling alleys
-skating rinks
-amusement arcades and adult gaming centres
-laser quests and escape rooms
-cinemas, theatres and concert halls
-snooker halls
●indoor attractions at mostly outdoor entertainment venues must also close (indoor shops, through-ways and public toilets at such attractions can remain open). This includes indoor attractions within:
-zoos, safari parks, and wildlife reserves
-aquariums, visitor attractions at farms, and other animal attractions
-model villages
-museums, galleries and sculpture parks
-botanical gardens, biomes or greenhouses
-theme parks, circuses, fairgrounds and funfairs
-visitor attractions at film studios, heritage sites such as castles and stately homes
-landmarks including observation decks and viewing platforms
-leisure and sports facilities may continue to stay open, but group exercise classes (including fitness and dance) should not go ahead. Saunas and steam rooms should close
●●●there should be no public attendance at spectator sport or indoor performances and large business events should not be taking place. Elite sport events may continue to take place without spectators
●●●large outdoor events (performances and shows) should not take place, with the exception of drive-in events
-places of worship remain open, but you must not attend with or socialise with anyone outside of your household or support bubble while you are there, unless a legal exemption applies
-weddings and funerals can go ahead with restrictions on the number of attendees – 15 people can attend wedding ceremonies, wedding receptions are not allowed, 30 people can attend funeral ceremonies, 15 people can attend linked commemorative events
-organised outdoor sport, and physical activity and exercise classes can continue, however higher-risk contact activity should not take place
-organised indoor sport, physical activity and exercise classes cannot take place indoors. There are exceptions for indoor disability sport, sport for educational purposes and supervised sport and physical activity for under-18s.