======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '110'
                                          'artist'  'Tune-Yards'
                                     'text_people'  'Merrill Garbus'
                                         'release'  'Bird-Brains'
                                           'title'  'For You'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'female vocalists', 'folk', 'experimental', 'freak folk']"
                                     'discogstags'  "['electronic', 'rock', 'art rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '13'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '91.062'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000289 0000028C 00003463 000035C6 000199CB 000199CB 000058BB 000058B0 '
 '00004B34 000199CB')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000007BC 00000000004A5A34 00000000 004358D1 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '13+B1BFB60849625136215E8675E8178C02+13863623'
'TALB' (Album/Movie/Show title)                     'Bird-Brains'
'TBPM' (BPM (beats per minute))                     '91.062'
'TCOM' (Composer)                                   'Merrill Garbus'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'iTunes 9.0.2.25'
'TIT2' (Title/songname/content description)         'For You'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tune-Yards'
'TRCK' (Track number/Position in set)               '1/13'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'rock', 'art rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'female vocalists', 'folk', 'experimental', 'freak folk']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                        '+0.83 dB'
'TXXX:replaygain_track_peak'                        '0.490073'

========================== row from database ==========================
                                              'id'  1249258
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Tune-Yards/Bird-Brains/01 for you.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  110
                                           'genre'  ifs-songwriter
                                        'filesize'  4424236
                                           'mtime'  1636401428
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 01 for you ifs songwriter
                                      'tag_artist'  Tune-Yards
                                     'tag_release'  Bird-Brains
                                       'tag_title'  For You
                                             'bpm'  91.062
                                    'search_title'  'for':1 'you':2
                                   'search_artist'  'tune':1 'tuneyards':3 'yards':2
                                  'search_release'  'bird':1 'birdbrains':3 'brains':2
                                     'search_rest'  '00singer':1 'eos':3 'for':4 'ifs':6 'songwriter':2 'you':5
                                    'search_combo'  '00singer':9 'bird':6C 'birdbrains':8C 'brains':7C 'eos':11 'for':1A,12 'ifs':14 'songwriter':10 'tune':3B 'tuneyards':5B 'yards':4B 'you':2A,13
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'female vocalists', 'folk', 'experimental', 'freak folk']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic', 'rock', 'art rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1636401427.5066094  (2021-11-08 20:57:07)
                             'size'  4424236