======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '224'
                                          'artist'  'B. Singer'
                                     'text_people'  ''
                                         'release'  'Beets'
                                           'title'  'Life Cycle'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', '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-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '145.3'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Beets'
'TBPM' (BPM (beats per minute))                     '145.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Life Cycle'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'B. Singer'
'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'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.91 dB'
'TXXX:replaygain_track_peak'                        '0.996004'
'TXXX:tracknum'                                     '11'

========================== row from database ==========================
                                              'id'  1386389
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Fred Frith - VA - Beets-(A Collection Of Jazz Songs) 1990 West Coast Avant Comp/11 - B. Singer - Life Cycle.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  224
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  6289577
                                           'mtime'  1620529132
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Fred Frith VA (A Collection Of Jazz Songs) 1990 West Coast Avant Comp 11 prerock jb jazz unsorted
                                      'tag_artist'  B. Singer
                                     'tag_release'  Beets
                                       'tag_title'  Life Cycle
                                             'bpm'  145.3
                                    'search_title'  'cycle':2 'life':1
                                   'search_artist'  'b':1,2 'singer':3
                                  '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':20 'a':14,15 'avant':23 'b':3B,4B 'beets':6C 'coast':22 'collection':16 'comp':24 'country':10 'cycle':2A 'exotica':8 'fred':11 'frith':12 'jazz':7 'jb':26 'life':1A 'of':17 'oldies':9 'prerock':25 'singer':5B 'songs':18,19 'unsorted':27 'va':13 'west':21
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', '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-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620529131.5282712  (2021-05-09 04:58:51)
                             'size'  6289577