======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '327'
                                          'artist'  'Fragile State'
                                     'text_people'  ''
                                         'release'  'Shiva Beats'
                                           'title'  'Train Time'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['chillout', 'downtempo', 'lounge', 'trip-hop', 'acid jazz']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '11'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '111.9'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Shiva Beats'
'TBPM' (BPM (beats per minute))                     '111.9'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Train Time'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Fragile State'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/2'
'TRCK' (Track number/Position in set)               '10/11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['chillout', 'downtempo', 'lounge', 'trip-hop', 'acid jazz']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.35 dB'
'TXXX:replaygain_track_peak'                        '0.638333'

========================== row from database ==========================
                                              'id'  1347248
                                            'path'  /data/Music/Bulk/00poprockelectronic/CD2/10 Fragile State - Train Time.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  327
                                           'genre'  electronic
                                        'filesize'  7904861
                                           'mtime'  1636913829
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic CD2 10 electronic
                                      'tag_artist'  Fragile State
                                     'tag_release'  Shiva Beats
                                       'tag_title'  Train Time
                                             'bpm'  111.9
                                    'search_title'  'time':2 'train':1
                                   'search_artist'  'fragile':1 'state':2
                                  'search_release'  'beats':2 'shiva':1
                                     'search_rest'  '00poprockelectronic':1 'cd2':2 'electronic':3
                                    'search_combo'  '00poprockelectronic':7 'beats':6C 'cd2':8 'electronic':9 'fragile':3B 'shiva':5C 'state':4B 'time':2A 'train':1A
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['chillout', 'downtempo', 'lounge', 'trip-hop', 'acid jazz']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636913829.2245667  (2021-11-14 19:17:09)
                             'size'  7904861