======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '177'
                                          'artist'  'Bill Haley & His Comets'
                                     'text_people'  ''
                                         'release'  'The Decca Years And More (CD 3'
                                           'title'  "Joey's Song"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'rock n roll', 'rock and roll', 'rockabilly', 'rock', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'rock-pop-early'
                                             'bpm'  '98.886'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-281 POS 46'
'COMM:ID3v1 Comment:XXX'                            '59-281 POS 46'
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'The Decca Years And More (CD 3'
'TBPM' (BPM (beats per minute))                     '98.886'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         "Joey's Song"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bill Haley & His Comets'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'rock n roll', 'rock and roll', 'rockabilly', 'rock', '50s']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.80 dB'
'TXXX:replaygain_track_peak'                        '0.495888'

========================== row from database ==========================
                                              'id'  1508195
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-281 - Bill Haley & His Comets - Joey_s Song.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  177
                                           'genre'  rock-pop-early
                                        'filesize'  7105221
                                           'mtime'  1620736490
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 281 Joey_s rock pop early
                                      'tag_artist'  Bill Haley & His Comets
                                     'tag_release'  The Decca Years And More (CD 3
                                       'tag_title'  Joey's Song
                                             'bpm'  98.886
                                    'search_title'  'joey':1 'joeys':3 's':2 'song':4
                                   'search_artist'  'bill':1 'comets':4 'haley':2 'his':3
                                  'search_release'  '3':8 'and':4 'cd':6,7 'decca':2 'more':5 'the':1 'years':3
                                     'search_rest'  '00oldiepop':5 '1959':6 '281':8 '59':7 'country':4 'early':13 'exotica':2 'jazz':1 'joey':9 'oldies':3 'pop':12 'rock':11 's':10
                                    'search_combo'  '00oldiepop':21 '1959':22 '281':24 '3':16C '59':23 'and':12C 'bill':5B 'cd':14C,15C 'comets':8B 'country':20 'decca':10C 'early':29 'exotica':18 'haley':6B 'his':7B 'jazz':17 'joey':1A,25 'joeys':3A 'more':13C 'oldies':19 'pop':28 'rock':27 's':2A,26 'song':4A 'the':9C 'years':11C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['oldies', 'rock n roll', 'rock and roll', 'rockabilly', 'rock', '50s']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736490.0493042  (2021-05-11 14:34:50)
                             'size'  7105221