======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '137'
                                          'artist'  'Johnny Cash'
                                     'text_people'  'Jack Clement'
                                         'release'  'At Folsom Prison'
                                           'title'  'Flushed From The Bathroom Of Y'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'singer songwritergdchill', 'cover', 'singer songwriter']"
                                     'discogstags'  "['folk, world, & country', 'country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '130.9'
                                             'key'  '6B'
                                        '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 \x00 \x00 \x009\x001\x009\x003\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x001\x005\x004\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x002\x000\x002\x007\x009\x004\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x009\x001\x009\x003\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x001\x005\x004\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x002\x000\x002\x007\x009\x004\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x12É!\x02P2cO\x80,\x01\x00Ç\x95íè'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x12\xc9!\x02P2cO\x80,\x01\x00\xc7\x95\xed\xe8')
'PRIV:WM/WMCollectionID:\x12É!\x02P2cO\x80,\x01\x00Ç\x95íè'  PRIV(owner='WM/WMCollectionID', data=b'\x12\xc9!\x02P2cO\x80,\x01\x00\xc7\x95\xed\xe8')
'PRIV:WM/WMContentID:|\x1b¼I\x96\x17ûE\x88=x\x064÷Êù'  PRIV(owner='WM/WMContentID', data=b'|\x1b\xbcI\x96\x17\xfbE\x88=x\x064\xf7\xca\xf9')
'TALB' (Album/Movie/Show title)                     'At Folsom Prison'
'TBPM' (BPM (beats per minute))                     '130.9'
'TCOM' (Composer)                                   'Jack Clement'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Flushed From The Bathroom Of Y'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Cash'
'TPE2' (Band/orchestra/accompaniment)               'Johnny Cash'
'TPUB' (Publisher)                                  'Sony'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk, world, & country', 'country']
'TXXX:lastfmtags'                                   ['country', 'singer songwritergdchill', 'cover', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.08 dB'
'TXXX:replaygain_track_peak'                        '0.596472'

========================== row from database ==========================
                                              'id'  1384748
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Johnny Cash_/Folsom Prison/112 - flushed from the bathroom of your heart.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  137
                                           'genre'  loc-namerica-country
                                        'filesize'  3291690
                                           'mtime'  1621630281
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Cash_ 112 flushed from the bathroom of your heart loc namerica country
                                      'tag_artist'  Johnny Cash
                                     'tag_release'  At Folsom Prison
                                       'tag_title'  Flushed From The Bathroom Of Y
                                             'bpm'  130.9
                                    'search_title'  'bathroom':4 'flushed':1 'from':2 'of':5 'the':3 'y':6
                                   'search_artist'  'cash':2 'johnny':1
                                  'search_release'  'at':1 'folsom':2 'prison':3
                                     'search_rest'  '00singer':1 '112':5 'bathroom':9 'cash':4 'country':15 'eos':3 'flushed':6 'from':7 'heart':12 'loc':13 'namerica':14 'of':10 'songwriter':2 'the':8 'your':11
                                    'search_combo'  '00singer':12 '112':16 'at':9C 'bathroom':4A,20 'cash':8B,15 'country':26 'eos':14 'flushed':1A,17 'folsom':10C 'from':2A,18 'heart':23 'johnny':7B 'loc':24 'namerica':25 'of':5A,21 'prison':11C 'songwriter':13 'the':3A,19 'y':6A 'your':22
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'singer songwritergdchill', 'cover', 'singer songwriter']
                                        'tag_date'  1999
                                     'discogstags'  ['folk, world, & country', 'country']

============================== file details ==============================
                                           'mtime'  1621630281.1066468  (2021-05-21 22:51:21)
                             'size'  3291690