======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '231'
                                          'artist'  'George McCrae'
                                     'text_people'  ''
                                         'release'  'The Very Best Of'
                                           'title'  "I Ain't Lyin'"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', '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-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['pop', '70s', 'soul', 'funk', 'disco']"
                                     'discogstags'  "['funk / soul', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  '18'
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '110.122'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:Cover Image'                                  type PictureType.COVER_FRONT (Cover (front)) b'Cover Image'
                                     
'COMM:ID3v1 Comment:XXX'                            'American; Miami'
'COMM:Songs-DB_Custom2:eng'                         'Oldies; Male Vocalists; Male; Singer-Songwriter'
'COMM:Songs-DB_Custom3:eng'                         'American; Miami'
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'The Very Best Of'
'TBPM' (BPM (beats per minute))                     '110.122'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDOR' (Original release time)                      '1975'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         "I Ain't Lyin'"
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'George McCrae'
'TPE2' (Band/orchestra/accompaniment)               'George McCrae'
'TRCK' (Track number/Position in set)               '18/18'
'TSOP' (Performer sort order)                       'McCrae, George'
'TXXX:ALBUMARTISTSORT'                              'McCrae, George'
'TXXX:ASIN'                                         'B00005BCHJ'
'TXXX:FMPS_Rating'                                  '0.8'
'TXXX:MusicBrainz Album Artist Id'                  'bd013a43-a262-4658-a372-b75ddba236b4'
'TXXX:MusicBrainz Album Id'                         'fe18fc0c-192f-4ec6-8a27-104c569732b1'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'bd013a43-a262-4658-a372-b75ddba236b4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'pop']
'TXXX:lastfmtags'                                   ['pop', '70s', 'soul', 'funk', 'disco']
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.13 dB'
'TXXX:replaygain_track_peak'                        '0.617570'

========================== row from database ==========================
                                              'id'  1496403
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Unsorted/George Mccrae__MBZ;#George McCrae;#The Very Best Of;#18;#I ain_t lyin_.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  231
                                           'genre'  funk or soul
                                        'filesize'  5573935
                                           'mtime'  1628357771
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Unsorted Mccrae__MBZ;#George McCrae;#The Of;#18;#I ain_t lyin_ funk soul
                                      'tag_artist'  George McCrae
                                     'tag_release'  The Very Best Of
                                       'tag_title'  I Ain't Lyin'
                                             'bpm'  110.122
                                    'search_title'  'ain':2 'aint':4 'i':1 'lyin':5,6 't':3
                                   'search_artist'  'crae':4 'george':1 'mc':3 'mccrae':2
                                  'search_release'  'best':3 'of':4 'the':1 'very':2
                                     'search_rest'  '18':17,20 'ain':22 'country':4 'crae':28,30 'exotica':2 'funk':25 'george':8,11 'i':18,21 'jazz':1 'lyin':24 'mbz':7,10 'mc':27 'mccrae':6,9,12,14 'of':16,19 'oldies':3 'soul':26 't':23 'the':13,15,29,31 'unsorted':5
                                    'search_combo'  '18':31,34 'ain':2A,36 'aint':4A 'best':13C 'country':18 'crae':10B,42,44 'exotica':16 'funk':39 'george':7B,22,25 'i':1A,32,35 'jazz':15 'lyin':5A,6A,38 'mbz':21,24 'mc':9B,41 'mccrae':8B,20,23,26,28 'of':14C,30,33 'oldies':17 'soul':40 't':3A,37 'the':11C,27,29,43,45 'unsorted':19 'very':12C
                                    'tag_tracknum'  18
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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'  ['pop', '70s', 'soul', 'funk', 'disco']
                                        'tag_date'  1975
                                     'discogstags'  ['funk / soul', 'pop']

============================== file details ==============================
                                           'mtime'  1628357770.8389878  (2021-08-07 19:36:10)
                             'size'  5573935