======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '147'
                                          'artist'  'Jon Appleton'
                                     'text_people'  ''
                                         'release'  'Appleton Syntonic Menagerie'
                                           'title'  "Chef D'Oeuvre"
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['contemporary classical', 'computer music', 'avant garde', 'electronic', "
 "'experimental']")
                                     'discogstags'  "['electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '143.1'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Appleton Syntonic Menagerie'
'TBPM' (BPM (beats per minute))                     '143.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         "Chef D'Oeuvre"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jon Appleton'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'experimental']
'TXXX:lastfmtags'                                   ['contemporary classical',
 'computer music',
 'avant garde',
 'electronic',
 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.62 dB'
'TXXX:replaygain_track_peak'                        '0.544120'

========================== row from database ==========================
                                              'id'  1496283
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/jon appleton - appleton syntonic menagerie (1969)/01 chef d_oeuvre.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  147
                                           'genre'  electronic-experimental
                                        'filesize'  3540759
                                           'mtime'  1636917308
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm jon appleton appleton syntonic menagerie (1969) 01 chef d_oeuvre electronic experimental
                                      'tag_artist'  Jon Appleton
                                     'tag_release'  Appleton Syntonic Menagerie
                                       'tag_title'  Chef D'Oeuvre
                                             'bpm'  143.1
                                    'search_title'  'chef':1 'd':2 'doeuvre':4 'oeuvre':3
                                   'search_artist'  'appleton':2 'jon':1
                                  'search_release'  'appleton':1 'menagerie':3 'syntonic':2
                                     'search_rest'  '1969':5,6 'appleton':2 'chef':7 'd':8 'electronic':10 'experimental':11 'jon':1 'menagerie':4 'oeuvre':9 'syntonic':3
                                    'search_combo'  '1969':14,15 'appleton':6B,7C,11 'chef':1A,16 'd':2A,17 'doeuvre':4A 'electronic':19 'experimental':20 'jon':5B,10 'menagerie':9C,13 'oeuvre':3A,18 'syntonic':8C,12
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'computer music', 'avant garde', 'electronic', 'experimental']
                                        'tag_date'  1969
                                     'discogstags'  ['electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1636917308.0519981  (2021-11-14 20:15:08)
                             'size'  3540759