======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '231'
                                          'artist'  'Elvis Presley'
                                     'text_people'  ''
                                         'release'  'The Million Dollar Quartet'
                                           'title'  'I Shall Not Be Moved'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']"
                                     'discogstags'  "['rock & roll', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '107.893'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Million Dollar Quartet'
'TBPM' (BPM (beats per minute))                     '107.893'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'I Shall Not Be Moved'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Elvis Presley'
'TRCK' (Track number/Position in set)               '5'
'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:discogstags'                                  ['rock & roll', 'rock']
'TXXX:lastfmtags'                                   ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
'TXXX:original release date'                        ['1993', '2004']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.37 dB'
'TXXX:replaygain_track_peak'                        '0.520121'

========================== row from database ==========================
                                              'id'  1309004
                                            'path'  /data/Music/Bulk/00poprockelectronic/Elvis Presley/Elvis Presley, Jerry Lee Lewis, Carl Perkins, Johnny Cash -The Million Dollar Quartet - I Shall Not Be Moved.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  231
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  3702939
                                           'mtime'  1622659498
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Presley, Jerry Lee Lewis, Carl Perkins, Johnny Cash rock pop early rocknroll
                                      'tag_artist'  Elvis Presley
                                     'tag_release'  The Million Dollar Quartet
                                       'tag_title'  I Shall Not Be Moved
                                             'bpm'  107.893
                                    'search_title'  'be':4 'i':1 'moved':5 'not':3 'shall':2
                                   'search_artist'  'elvis':1 'presley':2
                                  'search_release'  'dollar':3 'million':2 'quartet':4 'the':1
                                     'search_rest'  '00poprockelectronic':1 'carl':8 'cash':12 'early':15 'jerry':4 'johnny':11 'lee':5 'lewis':6,7 'perkins':9,10 'pop':14 'presley':2,3 'rock':13 'rocknroll':16
                                    'search_combo'  '00poprockelectronic':12 'be':4A 'carl':19 'cash':23 'dollar':10C 'early':26 'elvis':6B 'i':1A 'jerry':15 'johnny':22 'lee':16 'lewis':17,18 'million':9C 'moved':5A 'not':3A 'perkins':20,21 'pop':25 'presley':7B,13,14 'quartet':11C 'rock':24 'rocknroll':27 'shall':2A 'the':8C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
                                        'tag_date'  2004
                                     'discogstags'  ['rock & roll', 'rock']

============================== file details ==============================
                                           'mtime'  1622659497.69253  (2021-06-02 20:44:57)
                             'size'  3702939