======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '199'
                                          'artist'  'Charlie Puth'
                                     'text_people'  ''
                                         'release'  'Nine Track Mind'
                                           'title'  'Dangerously'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rnb', 'american', 'soul', 'pop']"
                                     'discogstags'  ("['ballad', 'contemporary r&b', 'soul', 'tropical house', 'electronic', 'funk "
 "/ soul', 'pop']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '112.196'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Nine Track Mind'
'TBPM' (BPM (beats per minute))                     '112.196'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Dangerously'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Charlie Puth'
'TPE2' (Band/orchestra/accompaniment)               'Charlie Puth'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['ballad',
 'contemporary r&b',
 'soul',
 'tropical house',
 'electronic',
 'funk / soul',
 'pop']
'TXXX:lastfmtags'                                   ['rnb', 'american', 'soul', 'pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.431812'

========================== row from database ==========================
                                              'id'  1348998
                                            'path'  /data/Music/Bulk/00poprockelectronic/2016/Charlie Puth - Dangerously.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  199
                                           'genre'  funk or soul
                                        'filesize'  8082378
                                           'mtime'  1628357923
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2016 funk or soul
                                      'tag_artist'  Charlie Puth
                                     'tag_release'  Nine Track Mind
                                       'tag_title'  Dangerously
                                             'bpm'  112.196
                                    'search_title'  'dangerously':1
                                   'search_artist'  'charlie':1 'puth':2
                                  'search_release'  'mind':3 'nine':1 'track':2
                                     'search_rest'  '00poprockelectronic':1 '2016':2 'funk':3 'or':4 'soul':5
                                    'search_combo'  '00poprockelectronic':7 '2016':8 'charlie':2B 'dangerously':1A 'funk':9 'mind':6C 'nine':4C 'or':10 'puth':3B 'soul':11 'track':5C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rnb', 'american', 'soul', 'pop']
                                        'tag_date'  2015
                                     'discogstags'  ['ballad', 'contemporary r&b', 'soul', 'tropical house', 'electronic', 'funk / soul', 'pop']

============================== file details ==============================
                                           'mtime'  1628357922.8459275  (2021-08-07 19:38:42)
                             'size'  8082378