======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '172'
                                          'artist'  'Bun Hunga And His Combo'
                                     'text_people'  ''
                                         'release'  'Relax'
                                           'title'  "Travelling On Rhythms (pn. bg. FR '69)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-2', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['orchestra']"
                                     'discogstags'  "['funk / soul', 'jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '101.8'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Relax'
'TBPM' (BPM (beats per minute))                     '101.8'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         "Travelling On Rhythms (pn. bg. FR '69)"
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bun Hunga & His Combo'
'TPE2' (Band/orchestra/accompaniment)               'Bun Hunga And His Combo'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'jazz']
'TXXX:lastfmtags'                                   'orchestra'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.73 dB'
'TXXX:replaygain_track_peak'                        '0.837318'

========================== row from database ==========================
                                              'id'  1528120
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Bun Hunga & His Combo - Travelling On Rhythms (pn. bg. FR _69).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  172
                                           'genre'  funk or soul
                                        'filesize'  6899528
                                           'mtime'  1628357803
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s & _69) funk or soul
                                      'tag_artist'  Bun Hunga And His Combo
                                     'tag_release'  Relax
                                       'tag_title'  Travelling On Rhythms (pn. bg. FR '69)
                                             'bpm'  101.8
                                    'search_title'  '69':9,10 'bg':6,7 'fr':8 'on':2 'pn':4,5 'rhythms':3 'travelling':1
                                   'search_artist'  'and':3 'bun':1 'combo':5 'his':4 'hunga':2
                                  'search_release'  'relax':1
                                     'search_rest'  '69':8,9 '70':6 'easy':4 'funk':2 'instr':5 'or':10 's':7 'soul':3 'swing':1
                                    'search_combo'  '69':9A,10A,24,25 '70':22 'and':13B 'bg':6A,7A 'bun':11B 'combo':15B 'easy':20 'fr':8A 'funk':18 'his':14B 'hunga':12B 'instr':21 'on':2A 'or':26 'pn':4A,5A 'relax':16C 'rhythms':3A 's':23 'soul':19 'swing':17 'travelling':1A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-2', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['orchestra']
                                        'tag_date'  1973
                                     'discogstags'  ['funk / soul', 'jazz']

============================== file details ==============================
                                           'mtime'  1628357802.615133  (2021-08-07 19:36:42)
                             'size'  6899528