======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '144'
                                          'artist'  'Teresa Brewer'
                                     'text_people'  ''
                                         'release'  "The One Rose (That's Left In My Heart)"
                                           'title'  "The One Rose (That's Left In My Heart)"
                                           'quals'  ("['Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['pop', 'jazz', 'female vocalists', '50s', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '1'
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '135.004'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '59-431 POS 75'
'COMM:ID3v1 Comment:XXX'                            '59-431 POS 75'
'TALB' (Album/Movie/Show title)                     "The One Rose (That's Left In My Heart)"
'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1959'
'TENC' (Encoded by)                                 'iTunes 9.2.1.5'
'TIT2' (Title/songname/content description)         "The One Rose (That's Left In My Heart)"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Teresa Brewer'
'TPE2' (Band/orchestra/accompaniment)               'Teresa Brewer'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1/1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['pop', 'jazz', 'female vocalists', '50s', 'oldies']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+10.98 dB'
'TXXX:replaygain_track_peak'                        '0.122103'

========================== row from database ==========================
                                              'id'  1512401
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-431 - Teresa Brewer - The One Rose (That_s Left In My Heart).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  144
                                           'genre'  prerock-vocal
                                        'filesize'  5856998
                                           'mtime'  1620385951
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 431 (That_s prerock vocal
                                      'tag_artist'  Teresa Brewer
                                     'tag_release'  The One Rose (That's Left In My Heart)
                                       'tag_title'  The One Rose (That's Left In My Heart)
                                             'bpm'  135.004
                                    'search_title'  'heart':10,11 'in':8 'left':7 'my':9 'one':2 'rose':3 's':5 'that':4 'thats':6 'the':1
                                   'search_artist'  'brewer':2 'teresa':1
                                  'search_release'  'heart':10,11 'in':8 'left':7 'my':9 'one':2 'rose':3 's':5 'that':4 'thats':6 'the':1
                                     'search_rest'  '00oldiepop':5 '1959':6 '431':8 '59':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':13 's':10,12 'that':9,11 'vocal':14
                                    'search_combo'  '00oldiepop':29 '1959':30 '431':32 '59':31 'brewer':13B 'country':28 'exotica':26 'heart':10A,11A,23C,24C 'in':8A,21C 'jazz':25 'left':7A,20C 'my':9A,22C 'oldies':27 'one':2A,15C 'prerock':37 'rose':3A,16C 's':5A,18C,34,36 'teresa':12B 'that':4A,17C,33,35 'thats':6A,19C 'the':1A,14C 'vocal':38
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['pop', 'jazz', 'female vocalists', '50s', 'oldies']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385951.306229  (2021-05-07 13:12:31)
                             'size'  5856998