======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '308'
                                          'artist'  'Martian Love'
                                     'text_people'  ''
                                         'release'  'Tales of the Red Planet'
                                           'title'  'Mariner 4'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'q-bass-4', 'q-drums-2', "
 "'q-other-3', 'q-piano-1', 'q-vocals-1', 'Q-MIXBEAT-2', 'Q-PLAY-3', "
 "'Q-CHART-1']")
                                      'lastfmtags'  "['downtempo', 'instrumental', 'trip-hop', 'electronic', 'post-rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '108.0'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Tales of the Red Planet'
'TBPM' (BPM (beats per minute))                     '108.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TIT2' (Title/songname/content description)         'Mariner 4'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Martian Love'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['downtempo', 'instrumental', 'trip-hop', 'electronic', 'post-rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.38 dB'
'TXXX:replaygain_track_peak'                        '0.554581'

========================== row from database ==========================
                                              'id'  1485567
                                            'path'  /data/Music/Bulk/00poprockelectronic/Martian Love - Tales Of The Red Planet (2013) (Style Post-rock, Downtempo)/03-mariner 4.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  308
                                           'genre'  electronic
                                        'filesize'  7525614
                                           'mtime'  1636914164
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Of The (2013) (Style Post rock, Downtempo) 03 mariner electronic
                                      'tag_artist'  Martian Love
                                     'tag_release'  Tales of the Red Planet
                                       'tag_title'  Mariner 4
                                             'bpm'  108.0
                                    'search_title'  '4':2 'mariner':1
                                   'search_artist'  'love':2 'martian':1
                                  'search_release'  'of':2 'planet':5 'red':4 'tales':1 'the':3
                                     'search_rest'  '00poprockelectronic':1 '2013':4,5 'downtempo':11,12 'electronic':14 'mariner':13 'of':2 'post':8 'rock':9,10 'style':6,7 'the':3
                                    'search_combo'  '00poprockelectronic':10 '2013':13,14 '4':2A 'downtempo':20,21 'electronic':23 'love':4B 'mariner':1A,22 'martian':3B 'of':6C,11 'planet':9C 'post':17 'red':8C 'rock':18,19 'style':15,16 'tales':5C 'the':7C,12
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-2', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['downtempo', 'instrumental', 'trip-hop', 'electronic', 'post-rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636914164.4567754  (2021-11-14 19:22:44)
                             'size'  7525614