======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '174'
                                          'artist'  'Baltimore & Maryland'
                                     'text_people'  ''
                                         'release'  'Dynamite R&B Duos - Vol. 02'
                                           'title'  "Don't You Know (I Love You)"
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '26'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rhythmblues'
                                             'bpm'  '89.178'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dynamite R&B Duos - Vol. 02'
'TBPM' (BPM (beats per minute))                     '89.178'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rhythmblues'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         "Don't You Know (I Love You)"
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Baltimore & Maryland'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '26'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.79 dB'
'TXXX:replaygain_track_peak'                        '0.683609'

========================== row from database ==========================
                                              'id'  1521398
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/va - Dynamite R&B Duos - Vol. 02/26 - Baltimore & Maryland - Don_t You Know (I Love You).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  174
                                           'genre'  rock-pop-early-rhythmblues
                                        'filesize'  4196337
                                           'mtime'  1620736459
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country va 26 Don_t rock pop early rhythmblues
                                      'tag_artist'  Baltimore & Maryland
                                     'tag_release'  Dynamite R&B Duos - Vol. 02
                                       'tag_title'  Don't You Know (I Love You)
                                             'bpm'  89.178
                                    'search_title'  'don':1 'dont':3 'i':6,7 'know':5 'love':8 't':2 'you':4,9
                                   'search_artist'  'baltimore':1 'maryland':2
                                  'search_release'  'b':3 'duos':5 'dynamite':1 'r':2 'rb':4 'vol':6,7
                                     'search_rest'  '26':6 'country':4 'don':7 'early':11 'exotica':2 'jazz':1 'oldies':3 'pop':10 'rhythmblues':12 'rock':9 't':8 'va':5
                                    'search_combo'  '26':24 'b':14C 'baltimore':10B 'country':22 'don':1A,25 'dont':3A 'duos':16C 'dynamite':12C 'early':29 'exotica':20 'i':6A,7A 'jazz':19 'know':5A 'love':8A 'maryland':11B 'oldies':21 'pop':28 'r':13C 'rb':15C 'rhythmblues':30 'rock':27 't':2A,26 'va':23 'vol':17C,18C 'you':4A,9A
                                    'tag_tracknum'  26
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736459.1354272  (2021-05-11 14:34:19)
                             'size'  4196337