======================== unified (from filesystem) ========================
                                         'bitrate'  '221.209'
                                        'duration'  '221'
                                          'artist'  'Silver Pozzoli'
                                     'text_people'  ''
                                         'release'  'miscitalo'
                                           'title'  'Step by Step'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'eurodance', 'italo disco', 'dance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '123.406'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'miscitalo'
'TBPM' (BPM (beats per minute))                     '123.406'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Step by Step'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Silver Pozzoli'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'eurodance', 'italo disco', 'dance']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.33 dB'
'TXXX:replaygain_track_peak'                        '0.453482'

========================== row from database ==========================
                                              'id'  1420597
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/106_silver_pozzoli_-_step_by_step.mp3
                                         'working'  None
                                         'bitrate'  221
                                    'duration_sec'  221
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  6138382
                                           'mtime'  1620607721
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco 106_silver_pozzoli_ _step_by_step electronic we disco or
                                      'tag_artist'  Silver Pozzoli
                                     'tag_release'  miscitalo
                                       'tag_title'  Step by Step
                                             'bpm'  123.406
                                    'search_title'  'by':2 'step':1
                                   'search_artist'  'pozzoli':2 'silver':1
                                  'search_release'  'miscitalo':1
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 '106':5 'by':9 'disco':3 'electronic':11 'or':13 'pozzoli':7 'silver':6 'step':8,10 'waves':2 'we':12
                                    'search_combo'  '00disco':9 '00poprockelectronic':6 '106':10 'by':2A,14 'disco':8 'electronic':16 'miscitalo':5C 'or':18 'pozzoli':4B,12 'silver':3B,11 'step':1A,13,15 'waves':7 'we':17
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-1', 'q-other-2', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'eurodance', 'italo disco', 'dance']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620607720.8860974  (2021-05-10 02:48:40)
                             'size'  6138382