======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '222'
                                          'artist'  'Carpenters'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '(They Long to Be) Close to you'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'Q-PLAY-2', 'Q-PIANO-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-chart-3', 'q-drums-3', 'q-other-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'female vocalists', 'pop', 'easy listening', '70s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-squeaky'
                                             'bpm'  '89.810'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '89.810'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-squeaky'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         '(They Long to Be) Close to you'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Carpenters'
'TXXX:Mp3gain_minmax'                               '103,180'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'female vocalists', 'pop', 'easy listening', '70s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.01 dB'
'TXXX:replaygain_track_peak'                        '0.999072'

========================== row from database ==========================
                                              'id'  1320234
                                            'path'  /data/Music/Bulk/00poprockelectronic/Carpenters/[1997] Love Songs/Carpenters - (They Long to Be) Close to you.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  222
                                           'genre'  electronic-generic or radio-squeaky
                                        'filesize'  5351390
                                           'mtime'  1622801111
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [1997] Love Songs electronic generic or radio squeaky
                                      'tag_artist'  Carpenters
                                     'tag_release'  None
                                       'tag_title'  (They Long to Be) Close to you
                                             'bpm'  89.81
                                    'search_title'  'be':5,6 'close':7 'long':3 'they':1,2 'to':4 'you':8
                                   'search_artist'  'carpenters':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1997':2,3 'electronic':6 'generic':7 'love':4 'or':8 'radio':9 'songs':5 'squeaky':10
                                    'search_combo'  '00poprockelectronic':10 '1997':11,12 'be':5A,6A 'carpenters':9B 'close':7A 'electronic':15 'generic':16 'long':3A 'love':13 'or':17 'radio':18 'songs':14 'squeaky':19 'they':1A,2A 'to':4A 'you':8A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['oldies', 'female vocalists', 'pop', 'easy listening', '70s']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622801111.1784072  (2021-06-04 12:05:11)
                             'size'  5351390