======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '142'
                                          'artist'  'Brian Hyland'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Itsy Bitsy Teeniw Weenie Yellow Polka Dot Bikini'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', '60s', 'male vocalists', 'pop', 'american']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'entertaining-unsorted;set-pl-billboard'
                                             'bpm'  '124.163'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '124.163'
'TCON' (Content type, a.k.a. Genre)                 ['entertaining-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Itsy Bitsy Teeniw Weenie Yellow Polka Dot Bikini'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Brian Hyland'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['oldies', '60s', 'male vocalists', 'pop', 'american']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.75 dB'
'TXXX:replaygain_track_peak'                        '0.974427'

========================== row from database ==========================
                                              'id'  1294485
                                            'path'  /data/Music/Bulk/00poprockelectronic/Clean/Brian Hyland - Itsy Bitsy Teenie Weenie Yellow Polka Dot Bik.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  142
                                           'genre'  entertaining-unsorted;set-pl-billboard
                                        'filesize'  4546386
                                           'mtime'  1620531681
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Clean Teenie entertaining unsorted;set pl billboard
                                      'tag_artist'  Brian Hyland
                                     'tag_release'  None
                                       'tag_title'  Itsy Bitsy Teeniw Weenie Yellow Polka Dot Bikini
                                             'bpm'  124.163
                                    'search_title'  'bikini':8 'bitsy':2 'dot':7 'itsy':1 'polka':6 'teeniw':3 'weenie':4 'yellow':5
                                   'search_artist'  'brian':1 'hyland':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'billboard':10 'clean':2 'entertaining':4 'pl':9 'set':6,8 'teenie':3 'unsorted':5,7
                                    'search_combo'  '00poprockelectronic':11 'bikini':8A 'billboard':20 'bitsy':2A 'brian':9B 'clean':12 'dot':7A 'entertaining':14 'hyland':10B 'itsy':1A 'pl':19 'polka':6A 'set':16,18 'teenie':13 'teeniw':3A 'unsorted':15,17 'weenie':4A 'yellow':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['oldies', '60s', 'male vocalists', 'pop', 'american']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620531680.6008925  (2021-05-09 05:41:20)
                             'size'  4546386