======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '114'
                                          'artist'  'Ruth & Al'
                                     'text_people'  ''
                                         'release'  'Dynamite R&B Duos - Vol. 04'
                                           'title'  "P's & Q's"
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-syn-1', 'q-bass-3', "
 "'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', 'q-other-2', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['rhythm and blues', 'rock n roll']"
                                     'discogstags'  "['rock & roll', 'rhythm & blues', 'funk / soul', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '25'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rhythmblues'
                                             'bpm'  '91.846'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dynamite R&B Duos - Vol. 04'
'TBPM' (BPM (beats per minute))                     '91.846'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rhythmblues'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         "P's & Q's"
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ruth & Al'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '16/25'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock & roll', 'rhythm & blues', 'funk / soul', 'rock']
'TXXX:lastfmtags'                                   ['rhythm and blues', 'rock n roll']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'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'                        '+2.49 dB'
'TXXX:replaygain_track_peak'                        '0.361587'

========================== row from database ==========================
                                              'id'  1515713
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/va - Dynamite R&B Duos - Vol. 04/16 - Ruth & Al - P_s & Q_s.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  114
                                           'genre'  rock-pop-early-rhythmblues
                                        'filesize'  1826688
                                           'mtime'  1620736525
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country va 16 P_s Q_s rock pop early rhythmblues
                                      'tag_artist'  Ruth & Al
                                     'tag_release'  Dynamite R&B Duos - Vol. 04
                                       'tag_title'  P's & Q's
                                             'bpm'  91.846
                                    'search_title'  'p':1 'ps':3 'q':4 'qs':6 's':2,5
                                   'search_artist'  'al':2 'ruth':1
                                  'search_release'  'b':3 'duos':5 'dynamite':1 'r':2 'rb':4 'vol':6,7
                                     'search_rest'  'country':4 'early':12 'exotica':2 'jazz':1 'oldies':3 'p':6 'pop':11 'q':8 'rhythmblues':13 'rock':10 's':7,9 'va':5
                                    'search_combo'  'al':8B 'b':11C 'country':19 'duos':13C 'dynamite':9C 'early':27 'exotica':17 'jazz':16 'oldies':18 'p':1A,21 'pop':26 'ps':3A 'q':4A,23 'qs':6A 'r':10C 'rb':12C 'rhythmblues':28 'rock':25 'ruth':7B 's':2A,5A,22,24 'va':20 'vol':14C,15C
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rhythm and blues', 'rock n roll']
                                        'tag_date'  1995
                                     'discogstags'  ['rock & roll', 'rhythm & blues', 'funk / soul', 'rock']

============================== file details ==============================
                                           'mtime'  1620736524.815256  (2021-05-11 14:35:24)
                             'size'  1826688