======================== unified (from filesystem) ========================
                                         'bitrate'  '141.493'
                                        'duration'  '166'
                                          'artist'  'The Be Good Tanyas'
                                     'text_people'  'Canada'
                                         'release'  'Hello Love'
                                           'title'  'Crow Waltz'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                     'discogstags'  "['rock', 'blues', 'folk, world, & country', 'country', 'folk', 'acoustic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '15'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '121.774'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000989 000007F7 00001B75'
'COMM:iTunNORM:eng'                                 (' 00000989 000007F7 00001B75 000010DC 00002108 00010E6D 00007AA3 00006847 '
 '0000211F 00010E6D')
'TALB' (Album/Movie/Show title)                     'Hello Love'
'TBPM' (BPM (beats per minute))                     '121.774'
'TCOM' (Composer)                                   'Canada'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'LAME 3.90.3 Modified'
'TIT2' (Title/songname/content description)         'Crow Waltz'
'TKEY' (Initial key)                                '8B'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'The Be Good Tanyas'
'TPE2' (Band/orchestra/accompaniment)               'The Be Good Tanyas'
'TRCK' (Track number/Position in set)               '12/15'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'blues', 'folk, world, & country', 'country', 'folk', 'acoustic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.44 dB'
'TXXX:replaygain_track_peak'                        '0.596021'

========================== row from database ==========================
                                              'id'  308583
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Be Good Tanyas/[2006] Hello Love/12 Crow Waltz.mp3
                                         'working'  None
                                         'bitrate'  141
                                    'duration_sec'  166
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  3014886
                                           'mtime'  1636400655
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos [2006] 12 ifs songwriter folk
                                      'tag_artist'  The Be Good Tanyas
                                     'tag_release'  Hello Love
                                       'tag_title'  Crow Waltz
                                             'bpm'  121.774
                                    'search_title'  'crow':1 'waltz':2
                                   'search_artist'  'be':2 'good':3 'tanyas':4 'the':1
                                  'search_release'  'hello':1 'love':2
                                     'search_rest'  '00singer':1 '2006':4,5 'eos':3 'folk':7 'ifs':6 'songwriter':2
                                    'search_combo'  '00singer':9 '2006':12,13 'be':4B 'crow':1A 'eos':11 'folk':15 'good':5B 'hello':7C 'ifs':14 'love':8C 'songwriter':10 'tanyas':6B 'the':3B 'waltz':2A
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-3', 'q-play-3', '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-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2006
                                     'discogstags'  ['rock', 'blues', 'folk, world, & country', 'country', 'folk', 'acoustic']

============================== file details ==============================
                                           'mtime'  1636400654.9052217  (2021-11-08 20:44:14)
                             'size'  3014886