======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '139'
                                          'artist'  'The Legendary Stardust Cowboy'
                                     'text_people'  ''
                                         'release'  '7" Single'
                                           'title'  'Paralyzed'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'psychobilly', 'outsider', 'rockabilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1968'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '138.417'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '365 Days Project'
'COMM:ID3v1 Comment:XXX'                            '365 Days Project'
'TALB' (Album/Movie/Show title)                     '7" Single'
'TBPM' (BPM (beats per minute))                     '138.417'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1968'
'TIT2' (Title/songname/content description)         'Paralyzed'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Legendary Stardust Cowboy'
'TRCK' (Track number/Position in set)               '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'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.92 dB'
'TXXX:replaygain_track_peak'                        '0.433982'

========================== row from database ==========================
                                              'id'  1297697
                                            'path'  /data/Music/Bulk/00poprockelectronic/11/316_3_The_Legendary_Stardust_Cowboy_-_Paralyzed.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  139
                                           'genre'  electronic-unsorted
                                        'filesize'  4691783
                                           'mtime'  1620565321
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 11 316_3_The_Legendary_Stardust_Cowboy_ _Paralyzed electronic unsorted
                                      'tag_artist'  The Legendary Stardust Cowboy
                                     'tag_release'  7" Single
                                       'tag_title'  Paralyzed
                                             'bpm'  138.417
                                    'search_title'  'paralyzed':1
                                   'search_artist'  'cowboy':4 'legendary':2 'stardust':3 'the':1
                                  'search_release'  '7':1 'single':2
                                     'search_rest'  '00poprockelectronic':1 '3':3 '316':2 'cowboy':7 'electronic':9 'legendary':5 'paralyzed':8 'stardust':6 'the':4 'unsorted':10
                                    'search_combo'  '00poprockelectronic':8 '3':10 '316':9 '7':6C 'cowboy':5B,14 'electronic':16 'legendary':3B,12 'paralyzed':1A,15 'single':7C 'stardust':4B,13 'the':2B,11 'unsorted':17
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'psychobilly', 'outsider', 'rockabilly', 'rock']
                                        'tag_date'  1968
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620565320.5148625  (2021-05-09 15:02:00)
                             'size'  4691783