======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '172'
                                          'artist'  'The Platters'
                                     'text_people'  ''
                                         'release'  'The Magic Touch: An Anthology'
                                           'title'  'One In A Million'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', '60s', 'soul', 'doo wop', 'rhythm and blues', '50s']"
                                     'discogstags'  "['rock & roll', 'rhythm & blues', 'doo wop', 'rock', 'funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '168'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-doowop'
                                             'bpm'  '84.245'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Magic Touch: An Anthology'
'TBPM' (BPM (beats per minute))                     '84.245'
'TCON' (Content type, a.k.a. Genre)                 'prerock-doowop'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'One In A Million'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Platters'
'TRCK' (Track number/Position in set)               '168'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock & roll', 'rhythm & blues', 'doo wop', 'rock', 'funk / soul']
'TXXX:lastfmtags'                                   ['oldies', '60s', 'soul', 'doo wop', 'rhythm and blues', '50s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.98 dB'
'TXXX:replaygain_track_peak'                        '0.497013'

========================== row from database ==========================
                                              'id'  1430295
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-168 - The Platters - One In A Million.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  172
                                           'genre'  prerock-doowop
                                        'filesize'  6903882
                                           'mtime'  1621705420
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 168 prerock doowop
                                      'tag_artist'  The Platters
                                     'tag_release'  The Magic Touch: An Anthology
                                       'tag_title'  One In A Million
                                             'bpm'  84.245
                                    'search_title'  'a':3 'in':2 'million':4 'one':1
                                   'search_artist'  'platters':2 'the':1
                                  'search_release'  'an':5 'anthology':6 'magic':2 'the':1 'touch':3,4
                                     'search_rest'  '00oldiepop':5 '168':7 '1957':6 'country':4 'doowop':9 'exotica':2 'jazz':1 'oldies':3 'prerock':8
                                    'search_combo'  '00oldiepop':17 '168':19 '1957':18 'a':3A 'an':11C 'anthology':12C 'country':16 'doowop':21 'exotica':14 'in':2A 'jazz':13 'magic':8C 'million':4A 'oldies':15 'one':1A 'platters':6B 'prerock':20 'the':5B,7C 'touch':9C,10C
                                    'tag_tracknum'  168
                                      '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-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['oldies', '60s', 'soul', 'doo wop', 'rhythm and blues', '50s']
                                        'tag_date'  1957
                                     'discogstags'  ['rock & roll', 'rhythm & blues', 'doo wop', 'rock', 'funk / soul']

============================== file details ==============================
                                           'mtime'  1621705420.1156976  (2021-05-22 19:43:40)
                             'size'  6903882