======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '107'
                                          'artist'  'Elvis Presley'
                                     'text_people'  ''
                                         'release'  "The Complete 50's Masters (dis"
                                           'title'  'Dixieland Rock'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '93.803'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "The Complete 50's Masters (dis"
'TBPM' (BPM (beats per minute))                     '93.803'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TIT2' (Title/songname/content description)         'Dixieland Rock'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Elvis Presley'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.82 dB'
'TXXX:replaygain_track_peak'                        '0.493660'

========================== row from database ==========================
                                              'id'  1509418
                                            'path'  /data/Music/Bulk/00poprockelectronic/Elvis Presley/MBZ;#Elvis Presley;#The Complete 50_s Masters (disc 4);#09;#Dixieland Rock.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  107
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  1728384
                                           'mtime'  1622659498
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Elvis Presley;#The 50_s (disc 4);#09;#Dixieland rock pop early rocknroll
                                      'tag_artist'  Elvis Presley
                                     'tag_release'  The Complete 50's Masters (dis
                                       'tag_title'  Dixieland Rock
                                             'bpm'  93.803
                                    'search_title'  'dixieland':1 'rock':2
                                   'search_artist'  'elvis':1 'presley':2
                                  'search_release'  '50':3 '50s':5 'complete':2 'dis':7,8 'masters':6 's':4 'the':1
                                     'search_rest'  '00poprockelectronic':1 '09':15,18 '4':14,17 '50':10 'disc':12,13 'dixieland':16,19 'early':22 'elvis':3,5 'mbz':2,4 'pop':21 'presley':6,8 'rock':20 'rocknroll':23 's':11 'the':7,9
                                    'search_combo'  '00poprockelectronic':13 '09':27,30 '4':26,29 '50':7C,22 '50s':9C 'complete':6C 'dis':11C,12C 'disc':24,25 'dixieland':1A,28,31 'early':34 'elvis':3B,15,17 'masters':10C 'mbz':14,16 'pop':33 'presley':4B,18,20 'rock':2A,32 'rocknroll':35 's':8C,23 'the':5C,19,21
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659497.9347565  (2021-06-02 20:44:57)
                             'size'  1728384