======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '146'
                                          'artist'  'Johnny Cash'
                                     'text_people'  'Del Lyon/Lani McIntire'
                                         'release'  'Unchained'
                                           'title'  "The One Rose (That's Left in My Heart)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'singer songwritergdchill', 'cover', 'singer songwriter']"
                                     'discogstags'  "['rock', 'country rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '145.8'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

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'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')
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'PRIV:WM/WMCollectionID:åA\x01ö¥ì,D\x87sYÑ\x8a]\x13\x1a'  PRIV(owner='WM/WMCollectionID', data=b'\xe5A\x01\xf6\xa5\xec,D\x87sY\xd1\x8a]\x13\x1a')
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'TALB' (Album/Movie/Show title)                     'Unchained'
'TBPM' (BPM (beats per minute))                     '145.8'
'TCOM' (Composer)                                   'Del Lyon/Lani McIntire'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         "The One Rose (That's Left in My Heart)"
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '146466'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Cash'
'TPE2' (Band/orchestra/accompaniment)               'Johnny Cash'
'TPUB' (Publisher)                                  'Universal'
'TRCK' (Track number/Position in set)               '4'
'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'                                  ['rock', 'country rock']
'TXXX:lastfmtags'                                   ['country', 'singer songwritergdchill', 'cover', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.72 dB'
'TXXX:replaygain_track_peak'                        '0.528104'

========================== row from database ==========================
                                              'id'  1498360
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Johnny Cash_/Unchained/04 the one rose (that_s left in my heart).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  146
                                           'genre'  loc-namerica-country
                                        'filesize'  2341220
                                           'mtime'  1621630287
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Cash_ 04 the one rose (that_s left my heart) loc namerica country
                                      'tag_artist'  Johnny Cash
                                     'tag_release'  Unchained
                                       'tag_title'  The One Rose (That's Left in My Heart)
                                             'bpm'  145.8
                                    'search_title'  'heart':10,11 'in':8 'left':7 'my':9 'one':2 'rose':3 's':5 'that':4 'thats':6 'the':1
                                   'search_artist'  'cash':2 'johnny':1
                                  'search_release'  'unchained':1
                                     'search_rest'  '00singer':1 'cash':4 'country':18 'eos':3 'heart':14,15 'left':12 'loc':16 'my':13 'namerica':17 'one':6 'rose':7 's':9,11 'songwriter':2 'that':8,10 'the':5
                                    'search_combo'  '00singer':15 'cash':13B,18 'country':32 'eos':17 'heart':10A,11A,28,29 'in':8A 'johnny':12B 'left':7A,26 'loc':30 'my':9A,27 'namerica':31 'one':2A,20 'rose':3A,21 's':5A,23,25 'songwriter':16 'that':4A,22,24 'thats':6A 'the':1A,19 'unchained':14C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  11B
                                           '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-2', 'q-syn-1', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'singer songwritergdchill', 'cover', 'singer songwriter']
                                        'tag_date'  1996
                                     'discogstags'  ['rock', 'country rock']

============================== file details ==============================
                                           'mtime'  1621630286.7158406  (2021-05-21 22:51:26)
                             'size'  2341220