======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '109'
                                          'artist'  'Known In Bakersfield'
                                     'text_people'  'Jon Leidecker & Tim Meany'
                                         'release'  'The Omnihelmet'
                                           'title'  'Once Free'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-4', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '24'
                                      'tracktotal'  '24'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '139.178'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Omnihelmet'
'TBPM' (BPM (beats per minute))                     '139.178'
'TCOM' (Composer)                                   'Jon Leidecker & Tim Meany'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Once Free'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Known In Bakersfield'
'TRCK' (Track number/Position in set)               '24/24'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '4'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.44 dB'
'TXXX:replaygain_track_peak'                        '0.505911'

========================== row from database ==========================
                                              'id'  231068
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0experimental_sound_projects/Wobbly/KIB18/kibA-24.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  109
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  2719821
                                           'mtime'  1620572046
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0experimental_sound_projects Wobbly KIB18 kibA 24 electronic experimental oddness
                                      'tag_artist'  Known In Bakersfield
                                     'tag_release'  The Omnihelmet
                                       'tag_title'  Once Free
                                             'bpm'  139.178
                                    'search_title'  'free':2 'once':1
                                   'search_artist'  'bakersfield':3 'in':2 'known':1
                                  'search_release'  'omnihelmet':2 'the':1
                                     'search_rest'  '0experimental':1 '24':7 'a':12 'electronic':8 'experimental':9 'kib':11 'kib18':5 'kiba':6 'oddness':10 'projects':3 'sound':2 'wobbly':4
                                    'search_combo'  '0experimental':8 '24':14 'a':19 'bakersfield':5B 'electronic':15 'experimental':16 'free':2A 'in':4B 'kib':18 'kib18':12 'kiba':13 'known':3B 'oddness':17 'omnihelmet':7C 'once':1A 'projects':10 'sound':9 'the':6C 'wobbly':11
                                    'tag_tracknum'  24
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-4', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620572046.1263926  (2021-05-09 16:54:06)
                             'size'  2719821