======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '194'
                                          'artist'  'Johnny Cash'
                                     'text_people'  ''
                                         'release'  'American III : Solitary Man'
                                           'title'  'Nobody'
                                           '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']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '109.8'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PCNT' (Play counter)                               PCNT(count=0)
'TALB' (Album/Movie/Show title)                     'American III : Solitary Man'
'TBPM' (BPM (beats per minute))                     '109.8'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TIT2' (Title/songname/content description)         'Nobody'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '194000'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Cash'
'TPE2' (Band/orchestra/accompaniment)               'Johnny Cash'
'TRCK' (Track number/Position in set)               '5'
'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: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'                        '+0.12 dB'
'TXXX:replaygain_track_peak'                        '0.444619'

========================== row from database ==========================
                                              'id'  1383430
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Johnny Cash_/American III - Solitary Man/johnny cash - american iii. solitary man - 05 - nobody.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  194
                                           'genre'  loc-namerica-country
                                        'filesize'  4677339
                                           'mtime'  1621630276
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Cash_ johnny cash american iii. solitary man 05 nobody loc namerica country
                                      'tag_artist'  Johnny Cash
                                     'tag_release'  American III : Solitary Man
                                       'tag_title'  Nobody
                                             'bpm'  109.8
                                    'search_title'  'nobody':1
                                   'search_artist'  'cash':2 'johnny':1
                                  'search_release'  'american':1 'iii':2 'man':4 'solitary':3
                                     'search_rest'  '00singer':1 'american':7 'cash':4,6 'country':15 'eos':3 'iii':8,9 'johnny':5 'loc':13 'man':11 'namerica':14 'nobody':12 'solitary':10 'songwriter':2
                                    'search_combo'  '00singer':8 'american':4C,14 'cash':3B,11,13 'country':22 'eos':10 'iii':5C,15,16 'johnny':2B,12 'loc':20 'man':7C,18 'namerica':21 'nobody':1A,19 'solitary':6C,17 'songwriter':9
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  10B
                                           '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'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630275.9180176  (2021-05-21 22:51:15)
                             'size'  4677339