======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '124'
                                          'artist'  'Index'
                                     'text_people'  ''
                                         'release'  'You Got It'
                                           'title'  "I'mGoin'ToMeetElvis"
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['ebm', 'industrial', 'psychedelic rock', 'psychedelic', 'garage rock']"
                                     'discogstags'  "['industrial', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '99'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '90.7'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'You Got It'
'TBPM' (BPM (beats per minute))                     '90.7'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1998'
'TENC' (Encoded by)                                 'SoundJam MP'
'TIT2' (Title/songname/content description)         "I'mGoin'ToMeetElvis"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Index'
'TRCK' (Track number/Position in set)               '99'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['industrial', 'electronic']
'TXXX:lastfmtags'                                   ['ebm', 'industrial', 'psychedelic rock', 'psychedelic', 'garage rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                        '+0.86 dB'
'TXXX:replaygain_track_peak'                        '0.854838'

========================== row from database ==========================
                                              'id'  1498771
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Index - Tracks from various albums/other [256k-320k]/Index - 99 -  I_mGoin_ToMeetElvis.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  124
                                           'genre'  electronic-unsorted
                                        'filesize'  3989399
                                           'mtime'  1620538437
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Tracks from various albums other [256k 320k] 99 I_mGoin_ToMeetElvis electronic unsorted
                                      'tag_artist'  Index
                                     'tag_release'  You Got It
                                       'tag_title'  I'mGoin'ToMeetElvis
                                             'bpm'  90.7
                                    'search_title'  'elvis':12 'goin':8 'gointo':10 'i':1,5 'im':7 'imgointomeetelvis':4 'm':6 'meet':11 'mgoin':2 'to':9 'tomeetelvis':3
                                   'search_artist'  'index':1
                                  'search_release'  'got':2 'it':3 'you':1
                                     'search_rest'  '256k':6,7 '320k':8,9 '99':10 'albums':4 'electronic':14 'elvis':21 'from':2 'goin':18 'i':11,16 'm':17 'meet':20 'mgoin':12 'other':5 'to':19 'tomeetelvis':13 'tracks':1 'unsorted':15 'various':3
                                    'search_combo'  '256k':22,23 '320k':24,25 '99':26 'albums':20 'electronic':30 'elvis':12A,37 'from':18 'goin':8A,34 'gointo':10A 'got':15C 'i':1A,5A,27,32 'im':7A 'imgointomeetelvis':4A 'index':13B 'it':16C 'm':6A,33 'meet':11A,36 'mgoin':2A,28 'other':21 'to':9A,35 'tomeetelvis':3A,29 'tracks':17 'unsorted':31 'various':19 'you':14C
                                    'tag_tracknum'  99
                                      'num_images'  0
                                             'key'  8A
                                           '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-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['ebm', 'industrial', 'psychedelic rock', 'psychedelic', 'garage rock']
                                        'tag_date'  1998
                                     'discogstags'  ['industrial', 'electronic']

============================== file details ==============================
                                           'mtime'  1620538436.581244  (2021-05-09 07:33:56)
                             'size'  3989399