======================== unified (from filesystem) ========================
                                         'bitrate'  '256.022'
                                        'duration'  '235'
                                          'artist'  'FM-84'
                                     'text_people'  ''
                                         'release'  'Atlas'
                                           'title'  'Chasing Yesterday'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronic', 'retrowave', 'dreamwave', 'synthwave', 'synthpop']"
                                     'discogstags'  "['electronic', 'synthwave']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-we-synthwave or chillwave or retrowave'
                                             'bpm'  '84.0'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Atlas'
'TBPM' (BPM (beats per minute))                     '84.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-synthwave or chillwave or retrowave'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Chasing Yesterday'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'FM-84'
'TPE2' (Band/orchestra/accompaniment)               'FM-84'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'synthwave']
'TXXX:lastfmtags'                                   ['electronic', 'retrowave', 'dreamwave', 'synthwave', 'synthpop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.45 dB'
'TXXX:replaygain_track_peak'                        '0.511353'

========================== row from database ==========================
                                              'id'  1339393
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00synthwave/FM-84 - Atlas/04 Chasing Yesterday.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  235
                                           'genre'  electronic-we-synthwave or chillwave or retrowave
                                        'filesize'  7638634
                                           'mtime'  1620609462
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00synthwave 04 electronic we synthwave or chillwave or retrowave
                                      'tag_artist'  FM-84
                                     'tag_release'  Atlas
                                       'tag_title'  Chasing Yesterday
                                             'bpm'  84.0
                                    'search_title'  'chasing':1 'yesterday':2
                                   'search_artist'  '84':2 'fm':1 'fm84':3
                                  'search_release'  'atlas':1
                                     'search_rest'  '00poprockelectronic':1 '00synthwave':4 'chillwave':9 'disco':3 'electronic':5 'or':8 'retrowave':10 'synthwave':7 'waves':2 'we':6
                                    'search_combo'  '00poprockelectronic':7 '00synthwave':10 '84':4B 'atlas':6C 'chasing':1A 'chillwave':15 'disco':9 'electronic':11 'fm':3B 'fm84':5B 'or':14 'retrowave':16 'synthwave':13 'waves':8 'we':12 'yesterday':2A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'retrowave', 'dreamwave', 'synthwave', 'synthpop']
                                        'tag_date'  2016
                                     'discogstags'  ['electronic', 'synthwave']

============================== file details ==============================
                                           'mtime'  1620609461.5465994  (2021-05-10 03:17:41)
                             'size'  7638634