======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '155'
                                          'artist'  'Charlie Rich'
                                     'text_people'  ''
                                         'release'  'Bubbling Under 5'
                                           'title'  'Big Boss Man'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['country', 'singer songwriter', 'soul', 'rockabilly', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '014'
                                      'tracktotal'  ''
                                            'date'  '1963'
                                        'comments'  ''
                                           'genre'  'prerock-country'
                                             'bpm'  '106.643'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Bubbling Under 5'
'TBPM' (BPM (beats per minute))                     '106.643'
'TCON' (Content type, a.k.a. Genre)                 'prerock-country'
'TDRC' (Recording time)                             '1963'
'TIT2' (Title/songname/content description)         'Big Boss Man'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Charlie Rich'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '014'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'singer songwriter', 'soul', 'rockabilly', 'classic country']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.16 dB'
'TXXX:replaygain_track_peak'                        '0.441710'

========================== row from database ==========================
                                              'id'  984468
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Bubbling under 5 (11-09-63)/014 Charlie Rich - Big boss man (11-30-63).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  155
                                           'genre'  prerock-country
                                        'filesize'  2490817
                                           'mtime'  1621627927
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country under (11 09 63) 014 boss man (11 30 63) prerock country
                                      'tag_artist'  Charlie Rich
                                     'tag_release'  Bubbling Under 5
                                       'tag_title'  Big Boss Man
                                             'bpm'  106.643
                                    'search_title'  'big':1 'boss':2 'man':3
                                   'search_artist'  'charlie':1 'rich':2
                                  'search_release'  '5':3 'bubbling':1 'under':2
                                     'search_rest'  '11':6,7 '30':12 '63':8,9 'boss':10 'country':4 'exotica':2 'jazz':1 'man':11 'oldies':3 'prerock':13 'under':5
                                    'search_combo'  '11':14,15 '30':20 '5':8C '63':16,17 'big':1A 'boss':2A,18 'bubbling':6C 'charlie':4B 'country':12 'exotica':10 'jazz':9 'man':3A,19 'oldies':11 'prerock':21 'rich':5B 'under':7C,13
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['country', 'singer songwriter', 'soul', 'rockabilly', 'classic country']
                                        'tag_date'  1963
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627926.504164  (2021-05-21 22:12:06)
                             'size'  2490817