======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '179'
                                          'artist'  'Louis Davids'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  "Turkey Trot - Berendans (Alexander's Ragtime Band)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1913'
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands'
                                             'bpm'  '145.476'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '145.476'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-netherlands'
'TDRC' (Recording time)                             '1913'
'TIT2' (Title/songname/content description)         "Turkey Trot - Berendans (Alexander's Ragtime Band)"
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Louis Davids'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.92 dB'
'TXXX:replaygain_track_peak'                        '0.396118'

========================== row from database ==========================
                                              'id'  1511081
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1913/Louis Davids - Turkey Trot - Berendans (Alexander_s Ragtime Band) 1913 .mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  179
                                           'genre'  loc-eur-netherlands
                                        'filesize'  3598130
                                           'mtime'  1621627076
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1913 (Alexander_s 1913 loc eur netherlands
                                      'tag_artist'  Louis Davids
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Turkey Trot - Berendans (Alexander's Ragtime Band)
                                             'bpm'  145.476
                                    'search_title'  'alexander':4 'alexanders':6 'band':8,9 'berendans':3 'ragtime':7 's':5 'trot':2 'turkey':1
                                   'search_artist'  'davids':2 'louis':1
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1913':6 'alexander':7,9 'country':4 'eur':12 'exotica':2 'jazz':1 'loc':11 'netherlands':13 'oldies':3 's':8,10
                                    'search_combo'  '00oldiepop':21 '1913':22 'album':13C 'alexander':4A,23,25 'alexanders':6A 'band':8A,9A 'berendans':3A 'country':20 'davids':11B 'eur':28 'exotica':18 'jazz':17 'loc':27 'louis':10B 'netherlands':29 'non':12C 'nonalbum':14C 'oldies':19 'ragtime':7A 's':5A,24,26 'tracks':15C,16C 'trot':2A 'turkey':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1913
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627076.4745307  (2021-05-21 21:57:56)
                             'size'  3598130