======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '169'
                                          'artist'  'Tim Hardin'
                                     'text_people'  ''
                                         'release'  'Simple Songs Of Freedom - The Tim Hardin Collection'
                                           'title'  'Southern Butterfly'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', '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-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['acoustic', 'blues', '60s', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '17'
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '143.8'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 000001AF 0000025D 00001C7A 00001BD4 00018253 000271B6 00005DE3 000062D9 '
 '00027182 0000A92F')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000ABC 00000000007242B4 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '17+8772C88CC08E4D374A26D3D4F7DE1462+1325650'
'TALB' (Album/Movie/Show title)                     'Simple Songs Of Freedom - The Tim Hardin Collection'
'TBPM' (BPM (beats per minute))                     '143.8'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1971'
'TENC' (Encoded by)                                 'iTunes v6.0.4.2'
'TIT2' (Title/songname/content description)         'Southern Butterfly'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tim Hardin'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '10/17'
'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'                                   ['acoustic', 'blues', '60s', 'folk', 'singer songwriter']
'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'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.01 dB'
'TXXX:replaygain_track_peak'                        '0.542426'

========================== row from database ==========================
                                              'id'  1269416
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Tim Hardin/Simple Songs Of Freedom/Tim Hardin - 10 Southern Butterfly.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  169
                                           'genre'  ifs-songwriter
                                        'filesize'  4079215
                                           'mtime'  1636401447
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 10 ifs songwriter
                                      'tag_artist'  Tim Hardin
                                     'tag_release'  Simple Songs Of Freedom - The Tim Hardin Collection
                                       'tag_title'  Southern Butterfly
                                             'bpm'  143.8
                                    'search_title'  'butterfly':2 'southern':1
                                   'search_artist'  'hardin':2 'tim':1
                                  'search_release'  'collection':8 'freedom':4 'hardin':7 'of':3 'simple':1 'songs':2 'the':5 'tim':6
                                     'search_rest'  '00singer':1 'eos':3 'ifs':4 'songwriter':2
                                    'search_combo'  '00singer':13 'butterfly':2A 'collection':12C 'eos':15 'freedom':8C 'hardin':4B,11C 'ifs':16 'of':7C 'simple':5C 'songs':6C 'songwriter':14 'southern':1A 'the':9C 'tim':3B,10C
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'blues', '60s', 'folk', 'singer songwriter']
                                        'tag_date'  1971
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636401447.3607192  (2021-11-08 20:57:27)
                             'size'  4079215