======================== unified (from filesystem) ========================
                                         'bitrate'  '163.172'
                                        'duration'  '259'
                                          'artist'  'Kate Rusby'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The Maid Of Llanwellyn'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['british folk', 'female vocalists', 'british', 'folk', 'singer songwriter']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '129.068'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '129.068'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'The Maid Of Llanwellyn'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kate Rusby'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['british folk', 'female vocalists', 'british', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                        '+1.61 dB'
'TXXX:replaygain_track_peak'                        '0.402472'

========================== row from database ==========================
                                              'id'  243271
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Kate Rusby/MBZ;#Kate Rusby;#10;#08;#The Maid Of Llanwellyn.mp3
                                         'working'  None
                                         'bitrate'  163
                                    'duration_sec'  259
                                           'genre'  ifs-songwriter
                                        'filesize'  5297393
                                           'mtime'  1637330795
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos MBZ;#Kate Rusby;#10;#08;#The ifs songwriter
                                      'tag_artist'  Kate Rusby
                                     'tag_release'  None
                                       'tag_title'  The Maid Of Llanwellyn
                                             'bpm'  129.068
                                    'search_title'  'llanwellyn':4 'maid':2 'of':3 'the':1
                                   'search_artist'  'kate':1 'rusby':2
                                  'search_release'  
                                     'search_rest'  '00singer':1 '08':10,14 '10':9,13 'eos':3 'ifs':16 'kate':5,7 'mbz':4,6 'rusby':8,12 'songwriter':2 'the':11,15
                                    'search_combo'  '00singer':7 '08':16,20 '10':15,19 'eos':9 'ifs':22 'kate':5B,11,13 'llanwellyn':4A 'maid':2A 'mbz':10,12 'of':3A 'rusby':6B,14,18 'songwriter':8 'the':1A,17,21
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['british folk', 'female vocalists', 'british', 'folk', 'singer songwriter']
                                        'tag_date'  2002
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1637330795.2322345  (2021-11-19 15:06:35)
                             'size'  5297393