======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '232'
                                          'artist'  'Marvin Gaye'
                                     'text_people'  ''
                                         'release'  'Mixed Emotions 3 (disc 1: Sweet Love)'
                                           'title'  "Let's Get It On"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-3', '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-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rnb', 'motown', 'rhythm and blues', 'soul', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '19'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '84.596'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Love; Romantic; Chillout'
'COMM:Songs-DB_Custom1:eng'                         '1990s'
'COMM:Songs-DB_Custom2:eng'                         'Oldies; Classic; Male Vocalists; Live'
'COMM:Songs-DB_Custom3:eng'                         'American; Detroit'
'COMM:Songs-DB_Occasion:eng'                        'Love; Romantic; Chillout'
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'Mixed Emotions 3 (disc 1: Sweet Love)'
'TBPM' (BPM (beats per minute))                     '84.596'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         "Let's Get It On"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Marvin Gaye'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '5/19'
'TSOP' (Performer sort order)                       'Gaye, Marvin'
'TXXX:ALBUMARTISTSORT'                              'Various Artists'
'TXXX:FMPS_Rating'                                  '0.8'
'TXXX:MP3GAIN_MINMAX'                               '108,181'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '4de05075-d190-4c76-93b0-907b90b8190a'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'afdb7919-059d-43c1-b668-ba1d265e7e42'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rnb', 'motown', 'rhythm and blues', 'soul', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.15 dB'
'TXXX:replaygain_track_peak'                        '0.460464'

========================== row from database ==========================
                                              'id'  1507825
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Unsorted/MBZ;#Marvin Gaye;#Mixed Emotions III (disc 1 Sweet Love);#05;#Let_s Get It On.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  232
                                           'genre'  funk or soul
                                        'filesize'  5579224
                                           'mtime'  1628357620
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Unsorted MBZ;#Marvin Gaye;#Mixed III Love);#05;#Let_s funk or soul
                                      'tag_artist'  Marvin Gaye
                                     'tag_release'  Mixed Emotions 3 (disc 1: Sweet Love)
                                       'tag_title'  Let's Get It On
                                             'bpm'  84.596
                                    'search_title'  'get':4 'it':5 'let':1 'lets':3 'on':6 's':2
                                   'search_artist'  'gaye':2 'marvin':1
                                  'search_release'  '1':6,7 '3':3 'disc':4,5 'emotions':2 'love':9,10 'mixed':1 'sweet':8
                                     'search_rest'  '05':16,20 'country':4 'exotica':2 'funk':23 'gaye':10,12 'iii':14 'jazz':1 'let':17,21 'love':15,19 'marvin':7,9 'mbz':6,8 'mixed':11,13 'oldies':3 'or':24 's':18,22 'soul':25 'unsorted':5
                                    'search_combo'  '05':34,38 '1':14C,15C '3':11C 'country':22 'disc':12C,13C 'emotions':10C 'exotica':20 'funk':41 'gaye':8B,28,30 'get':4A 'iii':32 'it':5A 'jazz':19 'let':1A,35,39 'lets':3A 'love':17C,18C,33,37 'marvin':7B,25,27 'mbz':24,26 'mixed':9C,29,31 'oldies':21 'on':6A 'or':42 's':2A,36,40 'soul':43 'sweet':16C 'unsorted':23
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rnb', 'motown', 'rhythm and blues', 'soul', 'funk']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357620.3346477  (2021-08-07 19:33:40)
                             'size'  5579224