Example meta fields from post 138:

array(46) {
  ["_edit_lock"]=>
  array(1) {
    [0]=>
    string(12) "1744620476:3"
  }
  ["_edit_last"]=>
  array(1) {
    [0]=>
    string(1) "3"
  }
  ["gigtype"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigtimezone"]=>
  array(1) {
    [0]=>
    string(14) "Pacific/Midway"
  }
  ["gigstreamtitle"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigstream"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigdate"]=>
  array(1) {
    [0]=>
    string(10) "2025-04-19"
  }
  ["gigtime"]=>
  array(1) {
    [0]=>
    string(5) "15:00"
  }
  ["gigdatetimedisplayrule"]=>
  array(1) {
    [0]=>
    string(8) "specific"
  }
  ["gigdaterangestart"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigdaterangeend"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigdescription"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvenue"]=>
  array(1) {
    [0]=>
    string(30) "15:00 Duke Of York’s Theatre"
  }
  ["gigvenueurl"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvenueaddress"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvenuecity"]=>
  array(1) {
    [0]=>
    string(6) "London"
  }
  ["gigvenuecounty"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvenuepostcode"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvenuecountry"]=>
  array(1) {
    [0]=>
    string(2) "UK"
  }
  ["gigvenuelongitude"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvenuelatitude"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvenueagerestriction"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigcustomhtml"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigticketlink"]=>
  array(1) {
    [0]=>
    string(43) "https://selfesteem.lnk.to/AComplicatedWoman"
  }
  ["gigticketsource"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigticketcost"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigticketstatus"]=>
  array(1) {
    [0]=>
    string(7) "Tickets"
  }
  ["gigticketstatusapi"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigticketsoldout"]=>
  array(1) {
    [0]=>
    string(2) "on"
  }
  ["gigticketsoldouttext"]=>
  array(1) {
    [0]=>
    string(17) "Sold Out"
  }
  ["gigsource"]=>
  array(1) {
    [0]=>
    string(14) "Manually Added"
  }
  ["gigbandsintownid"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigfacebookrsvp"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigfacebooktourdates"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["giglineup"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["giglineuphide"]=>
  array(1) {
    [0]=>
    string(3) "off"
  }
  ["gigvipticketstatus"]=>
  array(1) {
    [0]=>
    string(3) "off"
  }
  ["gigvipticketlink"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvipticketlabel"]=>
  array(1) {
    [0]=>
    string(11) "VIP Package"
  }
  ["gigvipticketcost"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvipticketsoldout"]=>
  array(1) {
    [0]=>
    string(3) "off"
  }
  ["gigvipticketsoldouttext"]=>
  array(1) {
    [0]=>
    string(8) "Sold Out"
  }
  ["_yoast_wpseo_estimated-reading-time-minutes"]=>
  array(1) {
    [0]=>
    string(1) "0"
  }
  ["umggr-update-info"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvenuecountyiso2"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
  ["gigvenuecountyiso3"]=>
  array(1) {
    [0]=>
    string(0) ""
  }
}

Using shortcode:
[umg-live posts_per_page="100" tickets_label="Tickets" show_times="no" date_format="D j M" order="DESC"]

Using query:

Using query and sort: