======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '336'
                                          'artist'  'Billy Joel'
                                     'text_people'  ''
                                         'release'  'Greatest Hits (disc 1)'
                                           'title'  'Piano Man'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-2', 'q-vocals-4', 'q-mixbeat-2', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['rock', 'singer songwriter', 'piano', 'pop', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '121.409'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Greatest Hits (disc 1)'
'TBPM' (BPM (beats per minute))                     '121.409'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Piano Man'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Joel'
'TRCK' (Track number/Position in set)               '1'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock', 'singer songwriter', 'piano', 'pop', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.90 dB'
'TXXX:replaygain_track_peak'                        '0.629084'

========================== row from database ==========================
                                              'id'  1354195
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billy Joel/Billy Joel__MBZ;#Billy Joel;#Greatest Hits (disc 1);#01;#Piano Man.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  336
                                           'genre'  rock-unsorted
                                        'filesize'  8075927
                                           'mtime'  1676052965
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Joel__MBZ;#Billy Joel;#Greatest 1);#01;#Piano rock unsorted
                                      'tag_artist'  Billy Joel
                                     'tag_release'  Greatest Hits (disc 1)
                                       'tag_title'  Piano Man
                                             'bpm'  121.409
                                    'search_title'  'man':2 'piano':1
                                   'search_artist'  'billy':1 'joel':2
                                  'search_release'  '1':5,6 'disc':3,4 'greatest':1 'hits':2
                                     'search_rest'  '00poprockelectronic':1 '01':13,16 '1':12,15 'billy':4,7 'greatest':9,11 'joel':2,5,8,10 'mbz':3,6 'piano':14,17 'rock':18 'unsorted':19
                                    'search_combo'  '00poprockelectronic':11 '01':23,26 '1':9C,10C,22,25 'billy':3B,14,17 'disc':7C,8C 'greatest':5C,19,21 'hits':6C 'joel':4B,12,15,18,20 'man':2A 'mbz':13,16 'piano':1A,24,27 'rock':28 'unsorted':29
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', 'q-drums-2', 'q-other-2', 'q-vocals-4', 'q-mixbeat-2', 'Q-PIANO-3']
                                      'lastfmtags'  ['rock', 'singer songwriter', 'piano', 'pop', 'classic rock']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676052965.0170739  (2023-02-10 19:16:05)
                             'size'  8075927