======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '143'
                                          'artist'  'Sugar Pie & Pee Wee'
                                     'text_people'  ''
                                         'release'  'Dynamite R&B Duos - Vol. 02'
                                           'title'  'Just A Few Little Words'
                                           '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-3', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['rhythm and blues', 'rock n roll', 'all']"
                                     'discogstags'  "['funk / soul', 'rhythm & blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rhythmblues'
                                             'bpm'  '131.498'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dynamite R&B Duos - Vol. 02'
'TBPM' (BPM (beats per minute))                     '131.498'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rhythmblues'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Just A Few Little Words'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sugar Pie & Pee Wee'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13'
'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'                                  ['funk / soul', 'rhythm & blues']
'TXXX:lastfmtags'                                   ['rhythm and blues', 'rock n roll', 'all']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.01 dB'
'TXXX:replaygain_track_peak'                        '0.557193'

========================== row from database ==========================
                                              'id'  948572
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/va - Dynamite R&B Duos - Vol. 02/13 - Sugar Pie & Pee Wee - Just A Few Little Words.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  143
                                           'genre'  rock-pop-early-rhythmblues
                                        'filesize'  3444514
                                           'mtime'  1620736430
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country va 13 rock pop early rhythmblues
                                      'tag_artist'  Sugar Pie & Pee Wee
                                     'tag_release'  Dynamite R&B Duos - Vol. 02
                                       'tag_title'  Just A Few Little Words
                                             'bpm'  131.498
                                    'search_title'  'a':2 'few':3 'just':1 'little':4 'words':5
                                   'search_artist'  'pee':3 'pie':2 'sugar':1 'wee':4
                                  'search_release'  'b':3 'duos':5 'dynamite':1 'r':2 'rb':4 'vol':6,7
                                     'search_rest'  'country':4 'early':8 'exotica':2 'jazz':1 'oldies':3 'pop':7 'rhythmblues':9 'rock':6 'va':5
                                    'search_combo'  'a':2A 'b':12C 'country':20 'duos':14C 'dynamite':10C 'early':24 'exotica':18 'few':3A 'jazz':17 'just':1A 'little':4A 'oldies':19 'pee':8B 'pie':7B 'pop':23 'r':11C 'rb':13C 'rhythmblues':25 'rock':22 'sugar':6B 'va':21 'vol':15C,16C 'wee':9B 'words':5A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  1A
                                           '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-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rhythm and blues', 'rock n roll', 'all']
                                        'tag_date'  1995
                                     'discogstags'  ['funk / soul', 'rhythm & blues']

============================== file details ==============================
                                           'mtime'  1620736429.6921744  (2021-05-11 14:33:49)
                             'size'  3444514