======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '129'
                                          'artist'  'Brenda Holloway'
                                     'text_people'  ''
                                         'release'  'The Motown Anthology'
                                           'title'  "When I'm Gone"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-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-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['60s', 'northern soul', 'motown', 'female vocalists', 'soul', '7soul']"
                                     'discogstags'  "['funk / soul', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '24'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '136.920'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000548 00000548 00002402'
'COMM:iTunNORM:eng'                                 (' 00000548 00000548 00002402 00002410 00015D06 00015D06 0000597C 00005962 '
 '0001B149 0001B149')
'TALB' (Album/Movie/Show title)                     'The Motown Anthology'
'TBPM' (BPM (beats per minute))                     '136.920'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1965'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         "When I'm Gone"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Brenda Holloway'
'TPE2' (Band/orchestra/accompaniment)               'Brenda Holloway'
'TPOS' (Part of a set)                              '1/2'
'TRCK' (Track number/Position in set)               '13/24'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'soul']
'TXXX:lastfmtags'                                   ['60s', 'northern soul', 'motown', 'female vocalists', 'soul', '7soul']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '-0.32 dB'
'TXXX:replaygain_track_peak'                        '0.494351'

========================== row from database ==========================
                                              'id'  1506683
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/06 - brenda holloway - when i_m gone.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  129
                                           'genre'  funk or soul
                                        'filesize'  5193332
                                           'mtime'  1628357941
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 06 brenda holloway when i_m gone funk or soul
                                      'tag_artist'  Brenda Holloway
                                     'tag_release'  The Motown Anthology
                                       'tag_title'  When I'm Gone
                                             'bpm'  136.92
                                    'search_title'  'gone':5 'i':2 'im':4 'm':3 'when':1
                                   'search_artist'  'brenda':1 'holloway':2
                                  'search_release'  'anthology':3 'motown':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 'brenda':7 'files':5,6 'funk':13 'gone':12 'holloway':8 'i':10 'loose':3,4 'm':11 'or':14 'soul':15 'unsorted':2 'when':9
                                    'search_combo'  '00poprockelectronic':11 'anthology':10C 'brenda':6B,17 'files':15,16 'funk':23 'gone':5A,22 'holloway':7B,18 'i':2A,20 'im':4A 'loose':13,14 'm':3A,21 'motown':9C 'or':24 'soul':25 'the':8C 'unsorted':12 'when':1A,19
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', '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'  ['60s', 'northern soul', 'motown', 'female vocalists', 'soul', '7soul']
                                        'tag_date'  1965
                                     'discogstags'  ['funk / soul', 'soul']

============================== file details ==============================
                                           'mtime'  1628357941.039828  (2021-08-07 19:39:01)
                             'size'  5193332