improved workings

src/main.sh

@@ -121,10 +121,10 @@ if [ "${1:-}" = "--internal-list-releasegroups" ]; then
       -v format_demo="$FORMAT_TYPE_SECONDARY_DEMO" \
       -v format_fieldrec="$FORMAT_TYPE_SECONDARY_FIELDREC" \
       "$AWK_RELEASEGROUPS" |
-    sort |
-    sort -t "$(printf '\t')" -k 4 -n -r |
+    sort -n -r |
+    cut -d "$(printf '\t')" -f 2- |
     column -t -s "$(printf '\t')" |
-    sed 's| \+[0-9]\+ \+\([0-9a-f-]\+\)$|\t\1|'
+    sed 's| \+\([0-9a-f-]\+\)$|\t\1|'
   exit 0
 fi
 
@@ -195,11 +195,7 @@ fi
 
 if [ "${1:-}" = "--help" ]; then
   cat <<EOF
-Usage: $0 [ --help | --show-artist <mbid> ]
-
-Options:
-  --help:                 Show this help and exit.
-  --show-artist <mbid>:   Show releaes of the artist given by the MusicBrainz ID <mbid>.
+Usage: $0 [ --help | --show-artist <mbid> | --show-releasegroup <mbid> | --show-release <mbid> ]
 EOF
   exit 0
 fi
@@ -302,14 +298,19 @@ while true; do
           --info-command="echo \"Search music artist\"" \
           --accept-nth="{1}" \
           --with-nth="{2}" \
+          --expect="ctrl-l" \
           --preview-window="right,25%,border-left,wrap,<30(hidden)" \
           --preview="$0 --internal-preview-artist {1}" \
+          --bind="load:transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l\"" \
           --bind="ctrl-d:half-page-down,ctrl-u:half-page-up" \
           --bind="down:preview-half-page-down,up:preview-half-page-up" \
           --bind="alt-b:execute-silent:xdg-open 'https://musicbrainz.org/artist/{r1}' &" \
           --bind="change:execute-silent($0 --internal-search \$FZF_QUERY &)+reload($0 --internal-reload)"
     )
-    [ "$sel" ] && set -- "--show-artist" "$sel"
+    lns=$(echo "$sel" | wc -l)
+    key=$(echo "$sel" | head -1 | tail -1)
+    mid=$(echo "$sel" | head -2 | tail -1)
+    [ "$mid" ] && set -- "--show-artist" "$mid"
     ;;
   esac
 done