======================== unified (from filesystem) ========================
                                         'bitrate'  '197.363'
                                        'duration'  '395'
                                          'artist'  'Joni Mitchell'
                                     'text_people'  ''
                                         'release'  'Mingus'
                                           'title'  'The Wolf That Lives In Lindsey'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['jazz', 'jazz-rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk;ifs-songwriter-eos'
                                             'bpm'  '108.471'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Eddie Gomez: bass\r\nJohn Guer'
'TALB' (Album/Movie/Show title)                     'Mingus'
'TBPM' (BPM (beats per minute))                     '108.471'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-folk', 'ifs-songwriter-eos']
'TDRC' (Recording time)                             '1979'
'TENC' (Encoded by)                                 'Winamp 5.33'
'TIT2' (Title/songname/content description)         'The Wolf That Lives In Lindsey'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Joni Mitchell'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Asylum'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'jazz-rock']
'TXXX:lastfmtags'                                   ['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.13 dB'
'TXXX:replaygain_track_peak'                        '0.786704'

========================== row from database ==========================
                                              'id'  195743
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Joni Mitchell/1979 - Mingus [Remastered]/05 - The Wolf That Lives In Lindsey.mp3
                                         'working'  None
                                         'bitrate'  197
                                    'duration_sec'  395
                                           'genre'  ifs-songwriter-folk;ifs-songwriter-eos
                                        'filesize'  9756544
                                           'mtime'  1636400343
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1979 [Remastered] 05 ifs songwriter folk;ifs songwriter eos
                                      'tag_artist'  Joni Mitchell
                                     'tag_release'  Mingus
                                       'tag_title'  The Wolf That Lives In Lindsey
                                             'bpm'  108.471
                                    'search_title'  'in':5 'lindsey':6 'lives':4 'that':3 'the':1 'wolf':2
                                   'search_artist'  'joni':1 'mitchell':2
                                  'search_release'  'mingus':1
                                     'search_rest'  '00singer':1 '1979':4 'eos':3 'folk':8,10 'ifs':7,9,11 'remastered':5,6 'songwriter':2
                                    'search_combo'  '00singer':10 '1979':13 'eos':12 'folk':17,19 'ifs':16,18,20 'in':5A 'joni':7B 'lindsey':6A 'lives':4A 'mingus':9C 'mitchell':8B 'remastered':14,15 'songwriter':11 'that':3A 'the':1A 'wolf':2A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  1979
                                     'discogstags'  ['jazz', 'jazz-rock']

============================== file details ==============================
                                           'mtime'  1636400343.416567  (2021-11-08 20:39:03)
                             'size'  9756544