======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '197'
                                          'artist'  'Jeannie Reynolds'
                                     'text_people'  ''
                                         'release'  '45rpm vinyl single'
                                           'title'  'Little Boy of Mine'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-UNU-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rare groove', '1976', 'dancefloor classics', 'soul']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '121.555'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '365 Days Project'
'COMM:ID3v1 Comment:XXX'                            '365 Days Project'
'TALB' (Album/Movie/Show title)                     '45rpm vinyl single'
'TBPM' (BPM (beats per minute))                     '121.555'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'Little Boy of Mine'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jeannie Reynolds'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['rare groove', '1976', 'dancefloor classics', 'soul']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.95 dB'
'TXXX:replaygain_track_peak'                        '0.479213'

========================== row from database ==========================
                                              'id'  1348561
                                            'path'  /data/Music/Bulk/00poprockelectronic/11/320_18_Jeannie_Reynolds_-_Little_Boy_of_Mine.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  197
                                           'genre'  electronic-unsorted
                                        'filesize'  5718088
                                           'mtime'  1621695982
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 11 320_18_Jeannie_Reynolds_ _Little_Boy_of_Mine electronic unsorted
                                      'tag_artist'  Jeannie Reynolds
                                     'tag_release'  45rpm vinyl single
                                       'tag_title'  Little Boy of Mine
                                             'bpm'  121.555
                                    'search_title'  'boy':2 'little':1 'mine':4 'of':3
                                   'search_artist'  'jeannie':1 'reynolds':2
                                  'search_release'  '45rpm':1 'single':3 'vinyl':2
                                     'search_rest'  '00poprockelectronic':1 '18':3 '320':2 'boy':7 'electronic':10 'jeannie':4 'little':6 'mine':9 'of':8 'reynolds':5 'unsorted':11
                                    'search_combo'  '00poprockelectronic':10 '18':12 '320':11 '45rpm':7C 'boy':2A,16 'electronic':19 'jeannie':5B,13 'little':1A,15 'mine':4A,18 'of':3A,17 'reynolds':6B,14 'single':9C 'unsorted':20 'vinyl':8C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['rare groove', '1976', 'dancefloor classics', 'soul']
                                        'tag_date'  
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1621695981.6739767  (2021-05-22 17:06:21)
                             'size'  5718088