======================== unified (from filesystem) ========================
                                         'bitrate'  '161.464'
                                        'duration'  '83'
                                          'artist'  'Stimmhorn & Kold Electronics'
                                     'text_people'  'C. Zehnder, B. Streiff, T. Kolczynski'
                                         'release'  'Igloo'
                                           'title'  'Seikilos'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-LOCALNESS-2', 'Q-UNU-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['world', 'throat singing', 'avant garde', 'experimental', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '12'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '134.466'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '12+F6469B710E93AE659F4C35107'
'COMM:iTunes_CDDB_IDs:eng'                          '12+F6469B710E93AE659F4C35107A3E8F64+4475880'
'PRIV:AverageLevel:c\x17\x00\x00'                   PRIV(owner='AverageLevel', data=b'c\x17\x00\x00')
'PRIV:PeakValue:}\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'}\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Igloo'
'TBPM' (BPM (beats per minute))                     '134.466'
'TCOM' (Composer)                                   'C. Zehnder, B. Streiff, T. Kolczynski'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDRC' (Recording time)                             '2004'
'TENC' (Encoded by)                                 'iTunes v4.6.0.15'
'TIT2' (Title/songname/content description)         'Seikilos'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Stimmhorn & Kold Electronics'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1/12'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['world', 'throat singing', 'avant garde', 'experimental', 'folk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.51 dB'
'TXXX:replaygain_track_peak'                        '0.498017'

========================== row from database ==========================
                                              'id'  1382731
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/igloo/01 seikilos.mp3
                                         'working'  None
                                         'bitrate'  161
                                    'duration_sec'  83
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  1680305
                                           'mtime'  1637330460
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm igloo 01 seikilos ifs songwriter experimental
                                      'tag_artist'  Stimmhorn & Kold Electronics
                                     'tag_release'  Igloo
                                       'tag_title'  Seikilos
                                             'bpm'  134.466
                                    'search_title'  'seikilos':1
                                   'search_artist'  'electronics':3 'kold':2 'stimmhorn':1
                                  'search_release'  'igloo':1
                                     'search_rest'  'experimental':5 'ifs':3 'igloo':1 'seikilos':2 'songwriter':4
                                    'search_combo'  'electronics':4B 'experimental':10 'ifs':8 'igloo':5C,6 'kold':3B 'seikilos':1A,7 'songwriter':9 'stimmhorn':2B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['world', 'throat singing', 'avant garde', 'experimental', 'folk']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330460.0998604  (2021-11-19 15:01:00)
                             'size'  1680305