======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '239'
                                          'artist'  'Fred Frith'
                                     'text_people'  ''
                                         'release'  'Beets'
                                           'title'  'Boots'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['contemporary classical', 'jazz', 'avantgarde', 'guitar', 'avant garde', "
 "'experimental']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted;electronic-unsorted'
                                             'bpm'  '130.3'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Beets'
'TBPM' (BPM (beats per minute))                     '130.3'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-unsorted', 'electronic-unsorted']
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Boots'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fred Frith'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['contemporary classical',
 'jazz',
 'avantgarde',
 'guitar',
 'avant garde',
 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.56 dB'
'TXXX:replaygain_track_peak'                        '0.663209'
'TXXX:tracknum'                                     '01'

========================== row from database ==========================
                                              'id'  1389175
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Fred Frith - VA - Beets-(A Collection Of Jazz Songs) 1990 West Coast Avant Comp/01 - Fred Frith - Boots.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  239
                                           'genre'  prerock-jb-jazz-unsorted;electronic-unsorted
                                        'filesize'  6727703
                                           'mtime'  1620529077
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country VA (A Collection Of Jazz Songs) 1990 West Coast Avant Comp 01 prerock jb jazz unsorted;electronic unsorted
                                      'tag_artist'  Fred Frith
                                     'tag_release'  Beets
                                       'tag_title'  Boots
                                             'bpm'  130.3
                                    'search_title'  'boots':1
                                   'search_artist'  'fred':1 'frith':2
                                  'search_release'  'beets':1
                                     'search_rest'  '1990':12 'a':6,7 'avant':15 'coast':14 'collection':8 'comp':16 'country':4 'electronic':20,22 'exotica':2 'jazz':1 'jb':18 'of':9 'oldies':3 'prerock':17 'songs':10,11 'unsorted':19,21,23 'va':5 'west':13
                                    'search_combo'  '1990':16 'a':10,11 'avant':19 'beets':4C 'boots':1A 'coast':18 'collection':12 'comp':20 'country':8 'electronic':24,26 'exotica':6 'fred':2B 'frith':3B 'jazz':5 'jb':22 'of':13 'oldies':7 'prerock':21 'songs':14,15 'unsorted':23,25,27 'va':9 'west':17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['contemporary classical', 'jazz', 'avantgarde', 'guitar', 'avant garde', 'experimental']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620529077.4339583  (2021-05-09 04:57:57)
                             'size'  6727703