======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '196'
                                          'artist'  'The Residents'
                                     'text_people'  ''
                                         'release'  'Petting Zoo'
                                           'title'  'How To Get A Head'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronic', 'post punk', 'avant garde', 'avantgarde', 'experimental']"
                                     'discogstags'  "['electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness-calmer'
                                             'bpm'  '84.5'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Petting Zoo'
'TBPM' (BPM (beats per minute))                     '84.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness-calmer'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'How To Get A Head'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Residents'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  ['electronic', 'experimental']
'TXXX:lastfmtags'                                   ['electronic', 'post punk', 'avant garde', 'avantgarde', 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.08 dB'
'TXXX:replaygain_track_peak'                        '0.467273'

========================== row from database ==========================
                                              'id'  934971
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Residents/2002 - The Residents - Petting Zoo (East Side Digital) [192k]/07 - How To Get A Head.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  196
                                           'genre'  electronic-experimental-oddness-calmer
                                        'filesize'  4727418
                                           'mtime'  1636902855
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 2002 (East Side Digital) [192k] 07 electronic experimental oddness calmer
                                      'tag_artist'  The Residents
                                     'tag_release'  Petting Zoo
                                       'tag_title'  How To Get A Head
                                             'bpm'  84.5
                                    'search_title'  'a':4 'get':3 'head':5 'how':1 'to':2
                                   'search_artist'  'residents':2 'the':1
                                  'search_release'  'petting':1 'zoo':2
                                     'search_rest'  '192k':7,8 '2002':1 'calmer':12 'digital':5,6 'east':2,3 'electronic':9 'experimental':10 'oddness':11 'side':4
                                    'search_combo'  '192k':16,17 '2002':10 'a':4A 'calmer':21 'digital':14,15 'east':11,12 'electronic':18 'experimental':19 'get':3A 'head':5A 'how':1A 'oddness':20 'petting':8C 'residents':7B 'side':13 'the':6B 'to':2A 'zoo':9C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'post punk', 'avant garde', 'avantgarde', 'experimental']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1636902855.4204266  (2021-11-14 16:14:15)
                             'size'  4727418