======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '197'
                                          'artist'  'Jon Appleton'
                                     'text_people'  ''
                                         'release'  'Contes De La Memoire'
                                           'title'  'Homage To Orpheus'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['contemporary classical', 'computer music', 'avant garde', 'electronic', "
 "'experimental']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early'
                                             'bpm'  '120.0'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Contes De La Memoire'
'TBPM' (BPM (beats per minute))                     '120.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-early'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Homage To Orpheus'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jon Appleton'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['contemporary classical',
 'computer music',
 'avant garde',
 'electronic',
 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.05 dB'
'TXXX:replaygain_track_peak'                        '0.969631'

========================== row from database ==========================
                                              'id'  1363809
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Hugh Le Caine - 1970/jon appleton - homage to orpheus (1970).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  197
                                           'genre'  electronic-experimental-early
                                        'filesize'  4747767
                                           'mtime'  1637329013
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Hugh Le Caine 1970 jon appleton homage orpheus (1970) electronic experimental early
                                      'tag_artist'  Jon Appleton
                                     'tag_release'  Contes De La Memoire
                                       'tag_title'  Homage To Orpheus
                                             'bpm'  120.0
                                    'search_title'  'homage':1 'orpheus':3 'to':2
                                   'search_artist'  'appleton':2 'jon':1
                                  'search_release'  'contes':1 'de':2 'la':3 'memoire':4
                                     'search_rest'  '1970':4,9 'appleton':6 'caine':3 'early':12 'electronic':10 'experimental':11 'homage':7 'hugh':1 'jon':5 'le':2 'orpheus':8
                                    'search_combo'  '1970':13,18 'appleton':5B,15 'caine':12 'contes':6C 'de':7C 'early':21 'electronic':19 'experimental':20 'homage':1A,16 'hugh':10 'jon':4B,14 'la':8C 'le':11 'memoire':9C 'orpheus':3A,17 'to':2A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'computer music', 'avant garde', 'electronic', 'experimental']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329013.1473398  (2021-11-19 14:36:53)
                             'size'  4747767