======================== unified (from filesystem) ========================
                                         'bitrate'  '167.801'
                                        'duration'  '541'
                                          'artist'  'Autechre'
                                     'text_people'  ''
                                         'release'  'Incunabula'
                                           'title'  'Eggshell'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'idm', 'electronic', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '32'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '88.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Incunabula'
'TBPM' (BPM (beats per minute))                     '88.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Eggshell'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Autechre'
'TPE2' (Band/orchestra/accompaniment)               'Autechre'
'TPUB' (Publisher)                                  'Wax Trax!'
'TRCK' (Track number/Position in set)               '32'
'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'
'TXXX:lastfmtags'                                   ['electronica', 'idm', 'electronic', 'experimental', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.15 dB'
'TXXX:replaygain_track_peak'                        '0.750587'

========================== row from database ==========================
                                              'id'  1337439
                                            'path'  /data/Music/Bulk/00poprockelectronic/Autechre/autechre - eggshell.mp3
                                         'working'  None
                                         'bitrate'  167
                                    'duration_sec'  541
                                           'genre'  electronic
                                        'filesize'  11379373
                                           'mtime'  1636913791
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic autechre eggshell electronic
                                      'tag_artist'  Autechre
                                     'tag_release'  Incunabula
                                       'tag_title'  Eggshell
                                             'bpm'  88.1
                                    'search_title'  'eggshell':1
                                   'search_artist'  'autechre':1
                                  'search_release'  'incunabula':1
                                     'search_rest'  '00poprockelectronic':1 'autechre':2 'eggshell':3 'electronic':4
                                    'search_combo'  '00poprockelectronic':4 'autechre':2B,5 'eggshell':1A,6 'electronic':7 'incunabula':3C
                                    'tag_tracknum'  32
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'idm', 'electronic', 'experimental', 'ambient']
                                        'tag_date'  1993
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636913790.9518042  (2021-11-14 19:16:30)
                             'size'  11379373