======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '380'
                                          'artist'  'Donna Summer'
                                     'text_people'  ''
                                         'release'  'Greatest Hits'
                                           'title'  'Could It Be Magic'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', '70s', 'female vocalists', 'pop', 'disco']"
                                     'discogstags'  "['funk / soul', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '126.252'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '126.252'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         'Could It Be Magic'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Donna Summer'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'disco']
'TXXX:lastfmtags'                                   ['dance', '70s', 'female vocalists', 'pop', 'disco']
'TXXX:original release date'                        ['1977', '1977']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.16 dB'
'TXXX:replaygain_track_peak'                        '0.694910'

========================== row from database ==========================
                                              'id'  1315894
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Donna Summer/MBZ;#Donna Summer;#Greatest Hits;#03;#Could It Be Magic.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  380
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  6088285
                                           'mtime'  1620535257
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo MBZ;#Donna Summer;#Greatest Hits;#03;#Could electronic we disco or italo
                                      'tag_artist'  Donna Summer
                                     'tag_release'  Greatest Hits
                                       'tag_title'  Could It Be Magic
                                             'bpm'  126.252
                                    'search_title'  'be':3 'could':1 'it':2 'magic':4
                                   'search_artist'  'donna':1 'summer':2
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 '03':15,18 'could':16,19 'disco':3 'donna':7,9 'electronic':20 'greatest':11,13 'hits':14,17 'italo':5 'mbz':6,8 'or':22 'summer':10,12 'waves':2 'we':21
                                    'search_combo'  '00disco':12 '00poprockelectronic':9 '03':23,26 'be':3A 'could':1A,24,27 'disco':11 'donna':5B,15,17 'electronic':28 'greatest':7C,19,21 'hits':8C,22,25 'it':2A 'italo':13 'magic':4A 'mbz':14,16 'or':30 'summer':6B,18,20 'waves':10 'we':29
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['dance', '70s', 'female vocalists', 'pop', 'disco']
                                        'tag_date'  1977
                                     'discogstags'  ['funk / soul', 'disco']

============================== file details ==============================
                                           'mtime'  1620535256.9282866  (2021-05-09 06:40:56)
                             'size'  6088285