======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '223'
                                          'artist'  'O.V. Wright'
                                     'text_people'  'Deadric Malone/Vernon Morrison'
                                         'release'  'Music for Maniacs'
                                           'title'  'A Nickel And A Nail'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soul', 'southern soul', 'deep soul', 'rhythm and blues', 'male vocals']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '90.2'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x008\x001\x005\x008\x007\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x008\x007\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x009\x008\x000\x006\x003\x006\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x008\x001\x005\x008\x007\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x008\x007\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x009\x008\x000\x006\x003\x006\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:$Y\x00Øá/\x05H\x85Ò\x17Yh\x10À\xa0'  PRIV(owner='WM/WMCollectionGroupID', data=b'$Y\x00\xd8\xe1/\x05H\x85\xd2\x17Yh\x10\xc0\xa0')
'PRIV:WM/WMCollectionID:$Y\x00Øá/\x05H\x85Ò\x17Yh\x10À\xa0'  PRIV(owner='WM/WMCollectionID', data=b'$Y\x00\xd8\xe1/\x05H\x85\xd2\x17Yh\x10\xc0\xa0')
'PRIV:WM/WMContentID:v1b\x17©\x03´EµKÞ®Ó}æß'        PRIV(owner='WM/WMContentID', data=b'v1b\x17\xa9\x03\xb4E\xb5K\xde\xae\xd3}\xe6\xdf')
'TALB' (Album/Movie/Show title)                     'Music for Maniacs'
'TBPM' (BPM (beats per minute))                     '90.2'
'TCOM' (Composer)                                   'Deadric Malone/Vernon Morrison'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         'A Nickel And A Nail'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'O.V. Wright'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Reel Music'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['soul', 'southern soul', 'deep soul', 'rhythm and blues', 'male vocals']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.84 dB'
'TXXX:replaygain_track_peak'                        '0.483545'

========================== row from database ==========================
                                              'id'  649666
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/O.V. Wright - Nickel and a nail.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  223
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  3577323
                                           'mtime'  1636916381
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music maniacs and nail electronic experimental oddness
                                      'tag_artist'  O.V. Wright
                                     'tag_release'  Music for Maniacs
                                       'tag_title'  A Nickel And A Nail
                                             'bpm'  90.2
                                    'search_title'  'a':1 'and':3 'nail':4 'nickel':2
                                   'search_artist'  'o':1 'ov':3 'v':2 'wright':4
                                  'search_release'  'for':2 'maniacs':3 'music':1
                                     'search_rest'  'and':3 'electronic':5 'experimental':6 'maniacs':2 'music':1 'nail':4 'oddness':7
                                    'search_combo'  'a':1A 'and':3A,14 'electronic':16 'experimental':17 'for':10C 'maniacs':11C,13 'music':9C,12 'nail':4A,15 'nickel':2A 'o':5B 'oddness':18 'ov':7B 'v':6B 'wright':8B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', '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-4', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'southern soul', 'deep soul', 'rhythm and blues', 'male vocals']
                                        'tag_date'  1971
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1636916380.7272668  (2021-11-14 19:59:40)
                             'size'  3577323