======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '204'
                                          'artist'  'Seldom Scene'
                                     'text_people'  ''
                                         'release'  '1972-1973 (Warped 7210)'
                                           'title'  'Reason for Being'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-2', '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'  "['bluegrass', 'country', 'folk-country', 'all']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '23'
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '91.4'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '1972-1973 (Warped 7210)'
'TBPM' (BPM (beats per minute))                     '91.4'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Reason for Being'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Seldom Scene'
'TPE2' (Band/orchestra/accompaniment)               'Seldom Scene'
'TRCK' (Track number/Position in set)               '23'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['bluegrass', 'country', 'folk-country', 'all']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'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'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.38 dB'
'TXXX:replaygain_track_peak'                        '0.714733'

========================== row from database ==========================
                                              'id'  647313
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Warped Records Collection/Warped 7210 - Seldom Scene - Classics 1972-1973 (2010)/23 - Reason For Being.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  204
                                           'genre'  loc-namerica-country
                                        'filesize'  9010134
                                           'mtime'  1621489385
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Records Collection Classics (2010) 23 For loc namerica country
                                      'tag_artist'  Seldom Scene
                                     'tag_release'  1972-1973 (Warped 7210)
                                       'tag_title'  Reason for Being
                                             'bpm'  91.4
                                    'search_title'  'being':3 'for':2 'reason':1
                                   'search_artist'  'scene':2 'seldom':1
                                  'search_release'  '1972':1 '19721973':3 '1973':2 '7210':6,7 'warped':4,5
                                     'search_rest'  '2010':4,5 '23':6 'classics':3 'collection':2 'country':10 'for':7 'loc':8 'namerica':9 'records':1
                                    'search_combo'  '1972':6C '19721973':8C '1973':7C '2010':16,17 '23':18 '7210':11C,12C 'being':3A 'classics':15 'collection':14 'country':22 'for':2A,19 'loc':20 'namerica':21 'reason':1A 'records':13 'scene':5B 'seldom':4B 'warped':9C,10C
                                    'tag_tracknum'  23
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['bluegrass', 'country', 'folk-country', 'all']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621489384.681489  (2021-05-20 07:43:04)
                             'size'  9010134