======================== unified (from filesystem) ========================
                                         'bitrate'  '314.14'
                                        'duration'  '363'
                                          'artist'  'Big City Orchestra'
                                     'text_people'  ''
                                         'release'  'Things Fall Down'
                                           'title'  "What Gran'pa Had Done"
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['industrial', 'noise', 'avant garde', 'experimental', 'old school "
 "industrial']")
                                     'discogstags'  "['electronic', 'drone', 'noise', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '105.9'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Things Fall Down'
'TBPM' (BPM (beats per minute))                     '105.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         "What Gran'pa Had Done"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Big City Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Big City Orchestra'
'TPOS' (Part of a set)                              'LF064MP3'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  ['electronic', 'drone', 'noise', 'experimental']
'TXXX:lastfmtags'                                   ['industrial', 'noise', 'avant garde', 'experimental', 'old school industrial']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.07 dB'
'TXXX:replaygain_track_peak'                        '0.745386'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'afe059bb-af5d-4153-b95d-e325682efb90')

========================== row from database ==========================
                                              'id'  1367934
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Big City Orchestra - lf064mp3/12-bco-what_granpa_had_done.mp3
                                         'working'  None
                                         'bitrate'  314
                                    'duration_sec'  363
                                           'genre'  electronic-experimental
                                        'filesize'  14617555
                                           'mtime'  1622801632
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm lf064mp3 12 bco what_granpa_had_done electronic experimental
                                      'tag_artist'  Big City Orchestra
                                     'tag_release'  Things Fall Down
                                       'tag_title'  What Gran'pa Had Done
                                             'bpm'  105.9
                                    'search_title'  'done':6 'gran':2 'granpa':4 'had':5 'pa':3 'what':1
                                   'search_artist'  'big':1 'city':2 'orchestra':3
                                  'search_release'  'down':3 'fall':2 'things':1
                                     'search_rest'  'bco':2 'done':6 'electronic':7 'experimental':8 'granpa':4 'had':5 'lf064mp3':1 'what':3
                                    'search_combo'  'bco':14 'big':7B 'city':8B 'done':6A,18 'down':12C 'electronic':19 'experimental':20 'fall':11C 'gran':2A 'granpa':4A,16 'had':5A,17 'lf064mp3':13 'orchestra':9B 'pa':3A 'things':10C 'what':1A,15
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'noise', 'avant garde', 'experimental', 'old school industrial']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic', 'drone', 'noise', 'experimental']

============================== file details ==============================
                                           'mtime'  1622801632.2871134  (2021-06-04 12:13:52)
                             'size'  14617555