======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '192'
                                          'artist'  'The Legendary Stardust Cowboy'
                                     'text_people'  ''
                                         'release'  'Rare Novelty  Vol. 1'
                                           'title'  "Who's Knocking At My Door"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['country', 'psychobilly', 'outsider', 'rockabilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '26'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-novelty'
                                             'bpm'  '144.130'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            'None'
'COMM:MusicMatch_Preference:eng'                    'None'
'TALB' (Album/Movie/Show title)                     'Rare Novelty  Vol. 1'
'TBPM' (BPM (beats per minute))                     '144.130'
'TCON' (Content type, a.k.a. Genre)                 'set-th-novelty'
'TIT2' (Title/songname/content description)         "Who's Knocking At My Door"
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '194351'
'TPE1' (Lead performer(s)/Soloist(s))               'The Legendary Stardust Cowboy'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '26'
'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:lastfmtags'                                   ['country', 'psychobilly', 'outsider', 'rockabilly', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.70 dB'
'TXXX:replaygain_track_peak'                        '0.506870'

========================== row from database ==========================
                                              'id'  1515776
                                            'path'  /data/Music/Bulk/00poprockelectronic/novelty/1/26 Who_s Knocking At My Door.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  192
                                           'genre'  set-th-novelty
                                        'filesize'  7849513
                                           'mtime'  1628353948
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic novelty 26 Who_s set th novelty
                                      'tag_artist'  The Legendary Stardust Cowboy
                                     'tag_release'  Rare Novelty  Vol. 1
                                       'tag_title'  Who's Knocking At My Door
                                             'bpm'  144.13
                                    'search_title'  'at':5 'door':7 'knocking':4 'my':6 's':2 'who':1 'whos':3
                                   'search_artist'  'cowboy':4 'legendary':2 'stardust':3 'the':1
                                  'search_release'  '1':5 'novelty':2 'rare':1 'vol':3,4
                                     'search_rest'  '00poprockelectronic':1 '26':3 'novelty':2 's':5 'set':6 'th':7 'who':4
                                    'search_combo'  '00poprockelectronic':17 '1':16C '26':19 'at':5A 'cowboy':11B 'door':7A 'knocking':4A 'legendary':9B 'my':6A 'novelty':13C,18 'rare':12C 's':2A,21 'set':22 'stardust':10B 'th':23 'the':8B 'vol':14C,15C 'who':1A,20 'whos':3A
                                    'tag_tracknum'  26
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'psychobilly', 'outsider', 'rockabilly', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628353947.7895377  (2021-08-07 18:32:27)
                             'size'  7849513