======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '179'
                                          'artist'  'Chequerboard'
                                     'text_people'  ''
                                         'release'  'Penny Black'
                                           'title'  'Skating Couple'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-4', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'acoustic', 'irish', 'electronic', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '9'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '120.686'
                                             'key'  '2B'
                                        'acoustid'  'baebcb1f-cc01-4066-a75a-aff49a9f1725'
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Penny Black'
'TBPM' (BPM (beats per minute))                     '120.686'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '2008-02-29'
'TIT2' (Title/songname/content description)         'Skating Couple'
'TKEY' (Initial key)                                '2B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Chequerboard'
'TPE2' (Band/orchestra/accompaniment)               'Chequerboard'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Lazybird'
'TRCK' (Track number/Position in set)               '6/9'
'TSO2'                                              'Chequerboard'
'TSOP' (Performer sort order)                       'Chequerboard'
'TXXX:Acoustid Id'                                  'baebcb1f-cc01-4066-a75a-aff49a9f1725'
'TXXX:CATALOGNUMBER'                                'Lazyb13'
'TXXX:DISCOGS_ARTIST_LINK'                          'Chequerboard'
'TXXX:DISCOGS_CATALOG'                              'Lazyb13'
'TXXX:DISCOGS_COUNTRY'                              'Ireland'
'TXXX:DISCOGS_LABEL'                                'Lazybird'
'TXXX:DISCOGS_LABEL_LINK'                           'Lazybird'
'TXXX:DISCOGS_ORIGINAL_TRACK_NUMBER'                '06'
'TXXX:DISCOGS_RELEASED'                             '29 Feb 2008'
'TXXX:DISCOGS_RELEASE_ID'                           '1270564'
'TXXX:DISCOGS_RELEASE_MONTH'                        '02'
'TXXX:MusicBrainz Album Artist Id'                  'd3d83790-b31a-42a9-a9ac-8bc1192c6d3f'
'TXXX:MusicBrainz Album Id'                         'f64235a5-102f-43a3-8d52-2cc4fbd01438'
'TXXX:MusicBrainz Album Release Country'            'IE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'd3d83790-b31a-42a9-a9ac-8bc1192c6d3f'
'TXXX:MusicBrainz Release Group Id'                 'caaf75b1-75b3-315a-a13f-861151bdb50a'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:STYLE'                                        'IDM'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['instrumental', 'acoustic', 'irish', 'electronic', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '4'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.26 dB'
'TXXX:replaygain_track_peak'                        '0.584455'

========================== row from database ==========================
                                              'id'  982860
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0calmer/Chequerboard/chequerboard - penny black (lazybird, 2008)/06 - skating couple.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  179
                                           'genre'  electronic
                                        'filesize'  7171082
                                           'mtime'  1636912132
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0calmer chequerboard penny black (lazybird, 2008) 06 skating couple electronic
                                      'tag_artist'  Chequerboard
                                     'tag_release'  Penny Black
                                       'tag_title'  Skating Couple
                                             'bpm'  120.686
                                    'search_title'  'couple':2 'skating':1
                                   'search_artist'  'chequerboard':1
                                  'search_release'  'black':2 'penny':1
                                     'search_rest'  '0calmer':1 '2008':7,8 'black':4 'chequerboard':2 'couple':10 'electronic':11 'lazybird':5,6 'penny':3 'skating':9
                                    'search_combo'  '0calmer':6 '2008':12,13 'black':5C,9 'chequerboard':3B,7 'couple':2A,15 'electronic':16 'lazybird':10,11 'penny':4C,8 'skating':1A,14
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-drums-1', 'q-busy-3', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'acoustic', 'irish', 'electronic', 'experimental']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912131.8411531  (2021-11-14 18:48:51)
                             'size'  7171082