======================== unified (from filesystem) ========================
                                         'bitrate'  '182.044'
                                        'duration'  '256'
                                          'artist'  'Radiohead'
                                     'text_people'  'Radiohead'
                                         'release'  'I Might Be Wrong: Live Recordings'
                                           'title'  'Morning Bell'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'indie', 'alternative', 'electronic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '8'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '144.233'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'I Might Be Wrong: Live Recordings'
'TBPM' (BPM (beats per minute))                     '144.233'
'TCOM' (Composer)                                   'Radiohead'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Morning Bell'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Radiohead'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:iTunes_CDDB_IDs'                              '8+57D4CDC4608835F88D94D032FD020B31+1521310'
'TXXX:lastfmtags'                                   ['alternative rock', 'indie', 'alternative', 'electronic', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.06 dB'
'TXXX:replaygain_track_peak'                        '0.402020'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1308071
                                            'path'  /data/Music/Bulk/00poprockelectronic/Radiohead/I Might Be Wrong_ Live Recordings/03 Morning Bell.mp3
                                         'working'  None
                                         'bitrate'  182
                                    'duration_sec'  256
                                           'genre'  rock-pop
                                        'filesize'  5985162
                                           'mtime'  1636917820
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Wrong_ 03 rock pop
                                      'tag_artist'  Radiohead
                                     'tag_release'  I Might Be Wrong: Live Recordings
                                       'tag_title'  Morning Bell
                                             'bpm'  144.233
                                    'search_title'  'bell':2 'morning':1
                                   'search_artist'  'radiohead':1
                                  'search_release'  'be':3 'i':1 'live':6 'might':2 'recordings':7 'wrong':4,5
                                     'search_rest'  '00poprockelectronic':1 'pop':4 'rock':3 'wrong':2
                                    'search_combo'  '00poprockelectronic':11 'be':6C 'bell':2A 'i':4C 'live':9C 'might':5C 'morning':1A 'pop':14 'radiohead':3B 'recordings':10C 'rock':13 'wrong':7C,8C,12
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'indie', 'alternative', 'electronic', 'rock']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636917820.1429844  (2021-11-14 20:23:40)
                             'size'  5985162