======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '205'
                                          'artist'  'Glenn Miller'
                                     'text_people'  ''
                                         'release'  'Glen Miller Greatest Hits'
                                           'title'  'Moonlight Serenade'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-JZFKS-2', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', 'jazz', '40s', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '18'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-big band'
                                             'bpm'  '145.685'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'Cleaned by TuneUp!'
'COMM:ID3v1 Comment:XXX'                            'Cleaned by TuneUp!'
'COMM:iTunNORM:eng'                                 (' 00000ABD 00000ABD 00005DCF 00005DCF 00028BB3 00028BB3 00006297 00006297 '
 '0001A0C7 0001A0C7')
'TALB' (Album/Movie/Show title)                     'Glen Miller Greatest Hits'
'TBPM' (BPM (beats per minute))                     '145.685'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-big band'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Moonlight Serenade'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Glenn Miller'
'TPE2' (Band/orchestra/accompaniment)               'Glenn Miller'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2/18'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['big band', 'jazz', '40s', 'oldies', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.03 dB'
'TXXX:replaygain_track_peak'                        '0.385120'

========================== row from database ==========================
                                              'id'  1352490
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/glenn miller - moonlight serenade.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  205
                                           'genre'  prerock-jb-jazz-o-big band
                                        'filesize'  4181703
                                           'mtime'  1620541274
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] glenn miller moonlight serenade prerock jb jazz big band
                                      'tag_artist'  Glenn Miller
                                     'tag_release'  Glen Miller Greatest Hits
                                       'tag_title'  Moonlight Serenade
                                             'bpm'  145.685
                                    'search_title'  'moonlight':1 'serenade':2
                                   'search_artist'  'glenn':1 'miller':2
                                  'search_release'  'glen':1 'greatest':3 'hits':4 'miller':2
                                     'search_rest'  '00poprockelectronic':1 'band':15 'big':14 'files':5,6 'glenn':7 'jazz':13 'jb':12 'loose':3,4 'miller':8 'moonlight':9 'prerock':11 'serenade':10 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 'band':23 'big':22 'files':13,14 'glen':5C 'glenn':3B,15 'greatest':7C 'hits':8C 'jazz':21 'jb':20 'loose':11,12 'miller':4B,6C,16 'moonlight':1A,17 'prerock':19 'serenade':2A,18 'unsorted':10
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['big band', 'jazz', '40s', 'oldies', 'swing']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541273.9075453  (2021-05-09 08:21:13)
                             'size'  4181703