======================== unified (from filesystem) ========================
                                         'bitrate'  '165.766'
                                        'duration'  '136'
                                          'artist'  'Ted Hawkins'
                                     'text_people'  'Theodore Hawkins, Jr.'
                                         'release'  'Watch Your Step'
                                           'title'  'Watch Your Step'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['acoustic', 'blues', 'soul', 'folk', 'singer songwriter']"
                                     'discogstags'  "['funk / soul', 'blues', 'rhythm & blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '15'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '117.5'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Watch Your Step'
'TBPM' (BPM (beats per minute))                     '117.5'
'TCOM' (Composer)                                   'Theodore Hawkins, Jr.'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Watch Your Step'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Ted Hawkins'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1/15'
'TXXX:Encoding Params'                              'vers'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:UFIDhttp://www.cddb.com/id3/taginfo1.html'    '3CD3N51R21234071U17883A0878CB6079CD7A2186D0DC5CF629AP1'
'TXXX:discogstags'                                  ['funk / soul', 'blues', 'rhythm & blues']
'TXXX:iTunes_CDDB_IDs'                              '15++'
'TXXX:lastfmtags'                                   ['acoustic', 'blues', 'soul', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.15 dB'
'TXXX:replaygain_track_peak'                        '0.413444'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1263030
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/Ted Hawkins/Watch Your Step/01 Watch Your Step.mp3
                                         'working'  None
                                         'bitrate'  165
                                    'duration_sec'  136
                                           'genre'  funk or soul
                                        'filesize'  2827505
                                           'mtime'  1628357897
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul 01 funk or soul
                                      'tag_artist'  Ted Hawkins
                                     'tag_release'  Watch Your Step
                                       'tag_title'  Watch Your Step
                                             'bpm'  117.5
                                    'search_title'  'step':3 'watch':1 'your':2
                                   'search_artist'  'hawkins':2 'ted':1
                                  'search_release'  'step':3 'watch':1 'your':2
                                     'search_rest'  'funk':2 'or':4 'soul':3 'swing':1
                                    'search_combo'  'funk':10 'hawkins':5B 'or':12 'soul':11 'step':3A,8C 'swing':9 'ted':4B 'watch':1A,6C 'your':2A,7C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'blues', 'soul', 'folk', 'singer songwriter']
                                        'tag_date'  2008
                                     'discogstags'  ['funk / soul', 'blues', 'rhythm & blues']

============================== file details ==============================
                                           'mtime'  1628357896.9578552  (2021-08-07 19:38:16)
                             'size'  2827505