======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '242'
                                          'artist'  'Anthony Braxton & Gino Robair -'
                                     'text_people'  ''
                                         'release'  'Beets'
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '143.0'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Beets'
'TBPM' (BPM (beats per minute))                     '143.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1990'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Anthony Braxton & Gino Robair -'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.658741'
'TXXX:tracknum'                                     '08'

========================== row from database ==========================
                                              'id'  1381709
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Fred Frith - VA - Beets-(A Collection Of Jazz Songs) 1990 West Coast Avant Comp/08 - Anthony Braxton & Gino Robair -.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  242
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  6797086
                                           'mtime'  1620529120
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Fred Frith VA (A Collection Of Jazz Songs) 1990 West Coast Avant Comp 08 prerock jb jazz unsorted
                                      'tag_artist'  Anthony Braxton & Gino Robair -
                                     'tag_release'  Beets
                                       'tag_title'  None
                                             'bpm'  143.0
                                    'search_title'  None
                                   'search_artist'  'anthony':1 'braxton':2 'gino':3 'robair':4
                                  'search_release'  'beets':1
                                     'search_rest'  '1990':14 'a':8,9 'avant':17 'coast':16 'collection':10 'comp':18 'country':4 'exotica':2 'fred':5 'frith':6 'jazz':1 'jb':20 'of':11 'oldies':3 'prerock':19 'songs':12,13 'unsorted':21 'va':7 'west':15
                                    'search_combo'  '1990':19 'a':13,14 'anthony':1B 'avant':22 'beets':5C 'braxton':2B 'coast':21 'collection':15 'comp':23 'country':9 'exotica':7 'fred':10 'frith':11 'gino':3B 'jazz':6 'jb':25 'of':16 'oldies':8 'prerock':24 'robair':4B 'songs':17,18 'unsorted':26 'va':12 'west':20
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-4', 'q-piano-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620529119.99417  (2021-05-09 04:58:39)
                             'size'  6797086