======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '310'
                                          'artist'  'Gregorian'
                                     'text_people'  ''
                                         'release'  'Masters of Chant Chapter IV'
                                           'title'  'Maid of Orleans'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-1', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['new age', 'choir', 'celtic', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'set-th-novelty;loc-eur;set-cover or covered'
                                             'bpm'  '145.790'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Masters of Chant Chapter IV'
'TBPM' (BPM (beats per minute))                     '145.790'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-novelty', 'loc-eur', 'set-cover or covered']
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Maid of Orleans'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gregorian'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['new age', 'choir', 'celtic', 'ambient']
'TXXX:original release date'                        ['2003', '2003']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.20 dB'
'TXXX:replaygain_track_peak'                        '0.440294'

========================== row from database ==========================
                                              'id'  929600
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/Gregorian/Gregorian - Masters Of Chant IV Chapter (2003)__cifs39db.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  310
                                           'genre'  set-th-novelty;loc-eur;set-cover or covered
                                        'filesize'  7462518
                                           'mtime'  1621629517
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe Of (2003)__cifs39db set th novelty;loc eur;set cover covered
                                      'tag_artist'  Gregorian
                                     'tag_release'  Masters of Chant Chapter IV
                                       'tag_title'  Maid of Orleans
                                             'bpm'  145.79
                                    'search_title'  'maid':1 'of':2 'orleans':3
                                   'search_artist'  'gregorian':1
                                  'search_release'  'chant':3 'chapter':4 'iv':5 'masters':1 'of':2
                                     'search_rest'  '00mid':1 '2003':5,7 'cifs39db':6,8 'cover':19 'covered':20 'eur':15,17 'europe':3 'loc':12,14 'north':2 'novelty':11,13 'of':4 'set':9,16,18 'th':10
                                    'search_combo'  '00mid':10 '2003':14,16 'chant':7C 'chapter':8C 'cifs39db':15,17 'cover':28 'covered':29 'eur':24,26 'europe':12 'gregorian':4B 'iv':9C 'loc':21,23 'maid':1A 'masters':5C 'north':11 'novelty':20,22 'of':2A,6C,13 'orleans':3A 'set':18,25,27 'th':19
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['new age', 'choir', 'celtic', 'ambient']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629517.2683074  (2021-05-21 22:38:37)
                             'size'  7462518