======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '147'
                                          'artist'  'Pete Nantz'
                                     'text_people'  ''
                                         'release'  'Jukebox Rock'
                                           'title'  'Jukebox Pearl'
                                           'quals'  ("['Q-OLDST-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['western swing']"
                                     'discogstags'  "['rock & roll', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '30'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'set-pl-spelling;rock-unsorted'
                                             'bpm'  '92.645'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000008D0 000008D2 00003855 00003826 000010F0 000010F0 00007C10 00007771 '
 '00002C14 00021FAC')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A14 000000000062E1DC 00000000 0035C344 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '30+9333BFDF43C2DD3AF74126EC34FA9A0E+1708545'
'TALB' (Album/Movie/Show title)                     'Jukebox Rock'
'TBPM' (BPM (beats per minute))                     '92.645'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-spelling', 'rock-unsorted']
'TDRC' (Recording time)                             '2000'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Jukebox Pearl'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Pete Nantz'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2/30'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock & roll', 'rock']
'TXXX:lastfmtags'                                   'western swing'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.15 dB'
'TXXX:replaygain_track_peak'                        '0.407325'

========================== row from database ==========================
                                              'id'  760035
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/Pete Nantz - Jukebox Pearl.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  147
                                           'genre'  set-pl-spelling;rock-unsorted
                                        'filesize'  3530627
                                           'mtime'  1620392916
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling set pl spelling;rock unsorted
                                      'tag_artist'  Pete Nantz
                                     'tag_release'  Jukebox Rock
                                       'tag_title'  Jukebox Pearl
                                             'bpm'  92.645
                                    'search_title'  'jukebox':1 'pearl':2
                                   'search_artist'  'nantz':2 'pete':1
                                  'search_release'  'jukebox':1 'rock':2
                                     'search_rest'  '0novelty':2 '0playlists':1 'pl':6 'rock':8,10 'set':5 'spelling':4,7,9 'themes':3 'unsorted':11
                                    'search_combo'  '0novelty':8 '0playlists':7 'jukebox':1A,5C 'nantz':4B 'pearl':2A 'pete':3B 'pl':12 'rock':6C,14,16 'set':11 'spelling':10,13,15 'themes':9 'unsorted':17
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['western swing']
                                        'tag_date'  2000
                                     'discogstags'  ['rock & roll', 'rock']

============================== file details ==============================
                                           'mtime'  1620392915.6711397  (2021-05-07 15:08:35)
                             'size'  3530627