======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '233'
                                          'artist'  'Roxette'
                                     'text_people'  ''
                                         'release'  'The Ballad Hits'
                                           'title'  'Fading Like a Flower'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'pop rock', 'pop', 'rock']"
                                     'discogstags'  "['electronic', 'rock', 'pop', 'soft rock', 'synth-pop', 'ballad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '105.313'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Ballad Hits'
'TBPM' (BPM (beats per minute))                     '105.313'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Fading Like a Flower'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Roxette'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'rock', 'pop', 'soft rock', 'synth-pop', 'ballad']
'TXXX:lastfmtags'                                   ['80s', 'pop rock', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.65 dB'
'TXXX:replaygain_track_peak'                        '0.445629'

========================== row from database ==========================
                                              'id'  1291770
                                            'path'  /data/Music/Bulk/00poprockelectronic/Roxette/04_Fading Like A Flover.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  233
                                           'genre'  rock-unsorted
                                        'filesize'  5596657
                                           'mtime'  1647352898
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 04_Fading A Flover rock unsorted
                                      'tag_artist'  Roxette
                                     'tag_release'  The Ballad Hits
                                       'tag_title'  Fading Like a Flower
                                             'bpm'  105.313
                                    'search_title'  'a':3 'fading':1 'flower':4 'like':2
                                   'search_artist'  'roxette':1
                                  'search_release'  'ballad':2 'hits':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 '04':2 'a':4 'fading':3 'flover':5 'rock':6 'unsorted':7
                                    'search_combo'  '00poprockelectronic':9 '04':10 'a':3A,12 'ballad':7C 'fading':1A,11 'flover':13 'flower':4A 'hits':8C 'like':2A 'rock':14 'roxette':5B 'the':6C 'unsorted':15
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['80s', 'pop rock', 'pop', 'rock']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'rock', 'pop', 'soft rock', 'synth-pop', 'ballad']

============================== file details ==============================
                                           'mtime'  1647352897.9334939  (2022-03-15 15:01:37)
                             'size'  5596657